MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The conduction system’s Action potential starts at the SA node and flows through 3 internodals. The Anterior Internodal branches off to the L. Atrium. What is the name for this branch?
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Tract of Wenkebach
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Bachmann’s Bundle
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Bundle of His
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Tract of Thorel
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Explanation:
Detailed explanation-1: -The SA node starts the sequence by causing the atrial muscles to contract. That’s why doctors sometimes call it the anatomical pacemaker. Next, the signal travels to the AV node, through the bundle of HIS, down the bundle branches, and through the Purkinje fibers, causing the ventricles to contract.
Detailed explanation-2: -In the heart’s conduction system, Bachmann’s bundle (also called the Bachmann bundle or the interatrial band) is a branch of the anterior internodal tract that resides on the inner wall of the left atrium.
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