Multiple Choice
Why does the human heart never tire of constantly beating to pump blood throughout the body?
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40. Circulatory System
Heart Physiology
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Which chamber(s) of a human heart receive(s) and pump(s) oxygenated blood?
A
Left atrium and right atrium
B
Left atrium only
C
Right atrium and right ventricle
D
Left ventricle only
E
Left ventricle and left atrium
Verified step by step guidance1
Understand the basic structure of the human heart, which consists of four chambers: the left atrium, right atrium, left ventricle, and right ventricle.
Recall that oxygenated blood is blood that has been enriched with oxygen in the lungs and is ready to be distributed to the rest of the body.
Identify the pathway of oxygenated blood: it returns from the lungs via the pulmonary veins to the left atrium.
From the left atrium, the oxygenated blood moves into the left ventricle, which then pumps it out through the aorta to supply the body.
Conclude that the chambers involved in receiving and pumping oxygenated blood are the left atrium and the left ventricle.
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