Neurotrophic Factors and Cellular Mechanisms in Brain Development
Explore the role of programmed cell death, apoptosis, nerve growth factor, BDNF, cell adhesion molecules, and more in brain development. Learn about the guidance of axons, differentiation, cell proliferation, and signaling chemicals. Discover how rehabilitation strategies aid individuals in overcoming injuries.
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Presentation Transcript
Nerve growth factor and ____ are two of the key neurotrophic factors in the brain. 2
brain-derived neurotrophic factor (BDNF) 2
molecules that adhere to the growth cone and help the axon move in the correct direction (Developing axons are guided to their final destinations by chemoattractants, chemorepellants, and ____ ____ molecules.) 3
differentiation that occurs without the help of inductive signals from nearby cells 4
the rapid growth in the number of cells during development 5
chemicals that provide a trail for migrating cells to follow 6
rehabilitation strategies that focus on providing new ways for individuals to carry out tasks made difficult by their injury 8
rehabilitation strategies that encourage the individual to use their impaired limb to carry out tasks, and to repeat the task again and again 9
constraint-induced movement therapy 9
the process by which a cell becomes a specialized type of cell 10
the embryonic layer that gives rise to the skin and the nervous system 11
ectoderm 11
death of a neuron caused by its overexcitement 12
a structure at the tip of a growing axon that senses axon guidance chemicals 13
growth cone 13
a chemical signal that triggers an undifferentiated cell to become a cell with a particular morphology 14
morphology 17
a chemical that promotes neuronal growth and prevents apoptosis 18
a tube-like structure formed when the ectoderm closes in upon itself during development 20
neural tube 20
neurogenesis 21
the type of glial cell that produces myelin in the central nervous system 23
the general name for immature cells capable of giving rise to various cell types (p___ cells) 24
the general name for cells that differentiate to become a specialized cell type 25
