How can the answer be improved?Sep 03, 2009 Scientists have traced the evolution of the fourchambered human heart to a common genetic factor linked to the development of hearts in turtles and snake heart human
Systemic arteries. Carotids extend cranially from the heart and adjacent to the trachea. The jugulars may be easily cannulated by a cutdown for placement of an IV catheter. Sites to collect blood from a snake include a ventral tail vein and cannulated jugular vein, and via cardiocentesis.
Snake Cardiovascular System. The threechambered reptilian heart is composed of two atria, which receive blood from the lungs and body, and a large ventricle, which pumps blood into arteries. This heart is evolutionarily more basic than the mammalian fourchambered heart, but because of divisions and valves within the ventricle, snake heart human