MEDICAL
ARTERIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The sinoatrial node is often referred to as the:
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semi lunar valve
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the heart muscle
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pacemaker of the heart
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conductor of the heart
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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 delay in conduction of impulse in this node changes the duration of contraction between the atria and the ventricles. Hence AV node is called as the pace-setter.
Detailed explanation-3: -Sino-atrial node is called the pacemaker of our heart.
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