Anatomy of Rat: External Morphology & Digestive System
This lab exercise delves into the external morphological features and digestive system of the rat, Rattus norvegicus. It covers the classification, body parts, and incision lines for dissection, providing a detailed insight into the anatomy of these mammals. Explore the unique characteristics and structures of the rat through images and descriptions.
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Presentation Transcript
Lab Exercise # 10 Zoo- 145 Anatomy of Rat External Morphological Features and the Digestive System of the rat, Rattus norvegicus
Lab Exercise # 10 Zoo- 145 The classification of the Rat (Rattus norvegicus) Phylum: Chordata Subphylum: Vertebrata Class: Mammalia Order: Rodentia Family: Muridae Genus: Rattus Species: norvegicus
BODY Head Neck Trunk Tail Mouth External nares Semicircular movement of head A pair of eyes, Each eye is covered with two eye lids Thorax Abdomen A pair of External Ears (Pinnae) A pair of fore arms Few Extra sensitive hair on upper lip are named as vibrissae. A pair of hind arms External genitalia penis and scrotum in males and vulva in females
Lab Exercise # 10 Zoo- 145 The body of the rat is covered with a thick sheath of hair and mouth of the rat is bound by two mobile lips whilst lower lip bifurcated or is cut in two halves. The external ears are called pinnae. On the ventral side of female rat, the trunk or abdomen the teats are protruded out of the mammary glands and used to nurse the new born babies The different parts with their respective locations are listed blow:
Incision lines for dissection of the rat.
