ANATOMY
CHEST AND CARDIOVASCULAR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The right atrium
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prevents blood flow from the right ventricle to the right atrium.
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prevents blood flow from the pulmonary artery to the right ventricle.
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is the location of the pacemaker cells of a normal heart.
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prevents blood flow from the aorta to the left ventricle
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Explanation:
Detailed explanation-1: -It is located at the junction of the crista terminalis in the upper wall of the right atrium and the opening of the superior vena cava. These cells have the ability to spontaneous generate an electrical impulse. It is the integrated activity of these so-called pacemaker cells that form the SA node .
Detailed explanation-2: -Right atrium: one of the four chambers of the heart. The right atrium receives blood low in oxygen from the body and then empties the blood into the right ventricle.
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