The thickest myocardium is found in the walls of the _____. Why?
A) right atrium; because it must pump against the high pressure of incoming venous blood from the vena cavae.
B) left atrium; because it must pump into the high pressure of the left ventricle.
C) right ventricle; because it must pump into the high resistance of the pulmonary circulation.
D) left ventricle; because it pumps into the systemic circulation and must push blood through the whole body.
Answer: D) left ventricle; because it pumps into the systemic circulation and must push blood through the whole body.
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Answer the following statement true (T) or false (F)
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