Amphibian Circulatory System
The circulatory system of amphibians is characterized by a three-chambered heart that consists of two atria and one ventricle. This system allows for the separation of oxygenated and deoxygenated blood to some extent, as the ventricle partially divides the two types of blood. Blood is pumped from the heart to the lungs for oxygenation and then circulated throughout the body. Amphibians also have a network of blood vessels that transport nutrients, gases, and waste products to and from cells.