PATHOLOGY MCQ
HEART
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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order pacemaker works
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sa node, av node, septum, bundle of his, purkinje fibers
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purkinje fibers, sa node, septum, bundle of his
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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 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-2: -The components of the cardiac conduction system include (in correct sequence) the sinoatrial (SA) node, the atrioventricular (AV) node, the atrioventricular (AV) bundle, the atrioventricular (AV) bundle branches, and the Purkinje fibers.
There is 1 question to complete.