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A key role of the atrioventricular node is to   act as a barrier to prevent the electrical impulse in the atria from reaching the ventricles.   slow down the conduction of the electrical impulse as it passes from the atria to the ventricles.   act as the pacemaker of the heart, by generating electrical signals in the right atrium.   speed up the conduction of the electrical impulse as it passes from the atria to the ventricles.   block backflow of blood from the aorta into the right ventricle.

A key role of the atrioventricular node is to   act as a barrier to prevent the electrical impulse in the atria from reaching the ventricles.   slow down the conduction of the electrical impulse as it passes from the atria to the ventricles.   act as the pacemaker of the heart, by generating electrical signals in the right atrium.   speed up the conduction of the electrical impulse as it passes from the atria to the ventricles.   block backflow of blood from the aorta into the right ventricle.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A key role of the atrioventricular node is to


 
act as a barrier to prevent the electrical impulse in the atria from reaching the ventricles.
 
slow down the conduction of the electrical impulse as it passes from the atria to the ventricles.
 
act as the pacemaker of the heart, by generating electrical signals in the right atrium.
 
speed up the conduction of the electrical impulse as it passes from the atria to the ventricles.
 
block backflow of blood from the aorta into the right ventricle.
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