GENERAL ANATOMY
ANATOMY OF THE HEART
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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SA Node
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interventricular septum
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Purkinje fibers
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Bundle of his
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Detailed explanation-1: -Answer and Explanation: The correct answer is option D. The coronary sinus is not part of the heart’s conduction system.
Detailed explanation-2: -The portion of the intrinsic conduction system located in the interventricular septum is the AV bundle.
Detailed explanation-3: -These muscle cells send signals to the rest of the heart muscle causing a contraction. This group of muscle cells is called the cardiac conduction system. The main parts of the system are the SA node, AV node, bundle of HIS, bundle branches, and Purkinje fibers.
Detailed explanation-4: -The cardiac conduction system comprises the following structures in order: SA node, internodal pathway and Bachmann’s bundle, AV node, bundle of His, bundle branches, and Purkinje fibers.