AP BIOLOGY

ANIMAL PHYSIOLOGY

HUMAN CIRCULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Pulmonary circulation is
A
The blood flow from heart to the body cells and back to the heart
B
The blood flow from heart to the lungs and back to the heart
C
The blood flow from lungs to the heart and then to the body cells
D
The blood flow from the body cells to the lunngs and back to the heart
Explanation: 

Detailed explanation-1: -The pulmonary circulation is a short loop from the heart to the lungs and back again. The systemic circulation carries blood from the heart to all the other parts of the body and back again.

Detailed explanation-2: -Pulmonary circulation transports oxygen-poor blood from the right ventricle to the lungs, where blood picks up a new blood supply. Then it returns the oxygen-rich blood to the left atrium.

Detailed explanation-3: -Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.

Detailed explanation-4: -Answer and Explanation: The correct answer is E. The pulmonary pathway flows from the right ventricle through the pulmonary trunk to the lungs to pick up oxygenated blood. The oxygenated blood returns to the left atrium.

There is 1 question to complete.