compare and contrast heart anatomy of a) most reptiles (turtles, snakes, lizards) b) crocodiles c) birds d) mammals in terms...

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Medical Sciences

compare and contrast heart anatomy of
a) most reptiles (turtles, snakes, lizards)
b) crocodiles
c) birds
d) mammals
in terms of # of atria, # of ventricles, total # of chambers,and development of the aorta from aortic arches (left, right, orboth).
Use a table
Include a drawing showing the basic template of dorsal aorta,ventral aorta, and six aortic arches, along with drawings showingthe modified patterns of aortic arches in a-d above.

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3.9 Ratings (635 Votes)

Reptile reptiles have three chambered hearts with two atria and one common ventricle The right atrium receives blood returning from the systemic circulation via the sinus venosuswhich is formed by the confluence of the right and left precaval veins and the single postcaval vein left atrium receives oxygenated blood from the lungs via the pulmonary vein The atrioventricular valves are bicuspid membranous structures the three chambered heart functions much like a four chambered structure therefore relatively little mixing of oxygenated and deoxygenated blood occurs ventricle and can be functionally separate the cavum venosum See Answer

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