AP BIOLOGY

ANIMAL PHYSIOLOGY

HUMAN CIRCULATION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which one of the following represents the correct path for the transmission of an impulse in the intrinsic conduction system of the heart?

A	AV node, Bundle of His, SA node, Purkinje fibers, bundle branches
B	SA node, AV node, Bundle of His, bundle branches, Purkinje fibers
C	SA node, Bundle of His, AV node, Purkinje fibers, bundle branches
D	SA node, Bundle of His, bundle branches, Purkinje fibers, AV node

Explanation:

Detailed explanation-1: -The option that represents the correct path for the transmission of an impulse in the intrinsic conductions system of the heart is D. sinoatrial (SA) node, atrioventricular (AV) node, atrioventricular (AV) bundle (bundle of His), right and left bundle branches, Purkinje fibers.

Detailed explanation-2: -Answer and Explanation: The correct sequence is D, E, B, C, and A. The electrical impulse is generated by the Sinoatrial node in the right atrium. The electrical impulse then travels through the internodal pathways towards the Atrioventricular node.

Detailed explanation-3: -Thus, the correct sequence of the cardiac impulse is SA Node, AV Node, AV Bundle, Purkinje fibre.

Detailed explanation-4: -Final answer: SA node

There is 1 question to complete.