Neurons in the Human Nervous System

3.5.3 Responses in the Human Nervous System Follow-Me iQuiz

Q. True or False. Motor neurons conduct impulses towards the central nervous system. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. What is a neuron? Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. Briefly explain the role of neurotransmitter substances. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. State a function for the Myelin sheath. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. Give a function of dendrites. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. What is a sensory neuron? Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. State a function for Schwann cells. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. What is the central nervous system? Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. TRUE or FALSE. A motor neuron carries impulses to the brain. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. What is peripheral nervous system? Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. What is a motor neuron? Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. Give one way in which a nervous response differs from a hormonal response. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. State one function of the cerebrum of the brain. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. What is grey matter? Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. What are interneurons or association neurons? Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. State one function of the hypothalamus of the brain. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. What is white matter? Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. State one function of the cerebellum of the brain. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. What term is used for glands that secrete hormones? Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. State one function of the medulla oblongata of the brain. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. Name the small gaps between neurons. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. Neurons produce neurotransmitter substances. What is their function? Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. Give an example of a reflex action in humans. Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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Q. Why are reflex actions important in humans? Homeostasis; Endocrine function Brain and spinal cord Nerve that carries impulse away from CNS to effector Nerve that carries impulse away from CNS to effector Homeostasis; Endocrine function Brain and spinal cord Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carries impulse across synaptic cleft, triggers impulse in next neuron Insulation; Protection; Speeds impulse Nerve that carries impulse from receptor towards CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Carry impulse across synapse Involuntary muscle control Nerves leading to and from CNS; Nerves not in CNS Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Cell bodies of neurons; Few axons; Little myelin Nerves that link two neurons Knee-jerk Endocrine Language; Reason; Senses; Memory; Intelligence Language; Reason; Senses; Memory; Intelligence Produces myelin sheath Endocrine Produces myelin sheath Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Many axons; Much myelin; Few cell bodies Receives and carries impulses to the cell body FALSE Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Fast response; Defence against injury Movement; Balance; Coordination Synaptic cleft; Synapse Faster; Shorter-lived; Electrical in nature TRUE Nerve cell Faster; Shorter-lived; Electrical in nature TRUE Nerve cell

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