When blood enters a mammalian heart, it flows through several valves in a distinct pattern. What is the order in which blood flows through these valves?
A) Aortic semilunar valve, pulmonary semilunar valve, tricuspid valve, mitral valve
B) Pulmonary semilunar valve, mitral valve, tricuspid valve, aortic semilunar valve
C) Tricuspid valve, pulmonary semilunar valve, aortic semilunar valve, mitral valve
D) Tricuspid valve, pulmonary semilunar valve, mitral valve, aortic semilunar valve
E) Mitral valve, aortic semilunar valve, tricuspid valve, pulmonary semilunar valve

Question

Quizplus · Accepted Answer

Blood flows from the right atrium through the tricuspid valve into the right ventricle, then through the pulmonary semilunar valve to the lungs. Oxygenated blood returns to the left atrium, passes through the mitral valve into the left ventricle, and is pumped through the aortic semilunar valve to the body.

When Blood Enters a Mammalian Heart, It Flows Through Several