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What features of rats make them a good experimental model to learn about factors that affect humans?
small, familiar, and easily bred for experiments
divides body into dorsal & ventral halves; 2 dimensional plane parallel to the anterior-posterior axis & perpendicular to the dorsal-ventral axis
a cross section; 2 dimensional plane perpendicular to the anterior-posterior axis of the body
divides body into left & right halves; 2 dimensional plane parallel to the anterior-posterior axis & parallel to the dorsal-ventral axis
adaptation to nocturnal life; eyes bulge from head and enable the rat to see in almost all directions
located at inside corner of the eye; this translucent membrane may be drawn across the eyeball for protection
a small protuberance from which the urinary aperture opens lies just caudal to the last pair of teats in a female
a stance in which both the sole & heel of a rat's foot contact the ground as indicated by the lack of hair from the toes to the heel
zygomatic arch (part of skull)
place where some jaw muscles pass under and attach to the lateral surface of the cranium
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