In a vertebrate with a four-chambered heart, the structure or region containing blood with the lowest O₂ concentration is the A) pulmonary vein. B) pulmonary artery. C) left atrium. D) aorta. E) arteriole end of a capillary.

Question

Quizplus · Accepted Answer

The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs, where it will receive oxygen.

In a Vertebrate with a Four-Chambered Heart, the Structure or Region