Which of the following is the correct sequence of parts through which blood moves from the vena cava to the lungs?
A)Right atrium, pulmonary valve, right ventricle, tricuspid valve
B)Right atrium, tricuspid valve, right ventricle, pulmonary valve
C)Right ventricle, tricuspid valve, right atrium, pulmonary valve
D)Right ventricle, pulmonary valve, right atrium, tricuspid valve, right ventricle

Question

Quizplus · Accepted Answer

Blood flows from the vena cava into the right atrium, where it passes through the tricuspid valve and enters the right ventricle. From there, blood is pumped through the pulmonary valve and into the lungs for oxygenation. The sequence of parts is therefore: right atrium, tricuspid valve, right ventricle, pulmonary valve. Choice B is the only option that correctly reflects this sequence.

Which of the Following Is the Correct Sequence of Parts