three-chambered heart

The three-chambered heart is located towards the animal's hind end.

Frogs have three-chambered hearts, a feature they share with lizards.

All have three-chambered hearts with two auricles and one ventricle.

Crocodiles have low systemic blood pressure, even lower than that of the iguana which has a three-chambered heart.

A small, three-chambered heart, lying under the adductor muscle, pumps colorless blood to all parts of the body.

They found that after eating, the python's ventricle (there's only one, snakes having three-chambered hearts) increased in mass by 40 percent.

Reptiles have three-chambered hearts; in some, the heart has a partly divided ventricle, almost forming a fourth chamber.

Amphibians have a three-chambered heart.

The twins were connected from the sternum to the navel and shared a three-chambered heart, which prevented doctors from separating them.

(Amphibians and most reptiles use double circulatory systems, and amphibians have a three-chambered heart.

The degree of mixing of oxygenated and deoxygenated blood in the three-chambered heart varies depending on the species and physiological state.

Most reptiles have a three-chambered heart consisting of two atria, one variably partitioned ventricle, and two aortas that lead to the systemic circulation.

Some animals (amphibians, reptiles) have a three-chambered heart, in which the blood from each atrium is mixed in the single ventricle before being pumped to the aorta.

Modern reptiles, which are coldblooded, have three-chambered hearts, with two aortas and only one ventricle; crocodiles have two ventricles but they are incompletely separated.

Also, some snake and lizard species (e.g., pythons and monitor lizards) have three-chambered hearts that become functionally four-chambered hearts during contraction.

Their circulatory systems are divided into two types: a three-chambered heart, with two atria and one ventricle, or a four-chambered heart, with two atria and two ventricles.

Reptiles and amphibians use a three-chambered heart, where blood goes into a separate part of the atrium on its way to the muscles, but the blood on its way back empties into the same ventricle.