MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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right atrium
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right ventricle
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left atrium
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left ventricle
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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.
Detailed explanation-2: -The SA node called the sinoatrial node lies in the wall of the right atrium near the opening of the superior vena cava.
Detailed explanation-3: -Sinoatrial node (SA node) is located on the wall of the right auricle/atrium, near the opening of the superior vena cava. It relays the impulse that starts a heart beat to the right ventricles with the help of special conducting fibres.
Detailed explanation-4: -The sinoatrial node is located in the upper part of the right atrium in the healthy heart, and serves as the natural pacemaker (Figure 1).