ANATOMY
CHEST AND CARDIOVASCULAR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The sinoatrial node(SA node) sets the heart rate by sending its impulse to the atrioventricular node for distribution.(AV node)
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The sinus node continuously generates electrical impulses, thereby setting the normal rhythm and rate in a healthy heart. Hence, the SA node is referred to as the natural pacemaker of the heart.
Detailed explanation-2: -The electrical impulse travels from the sinus node to the atrioventricular node (also called AV node). There, impulses are slowed down for a very short period, then continue down the conduction pathway via the bundle of His into the ventricles.
Detailed explanation-3: -Which of the following statements is true about the SA (sinoatrial) node? The pacemaker cells, which establish the heart rate, are located in the SA node.
There is 1 question to complete.