APPLIED RADIOLOGICAL ANATOMY

ANATOMY

CHEST AND CARDIOVASCULAR

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The AV node is known as the ​ (a) of the heart
A
gatekeeper
B
pacemaker
C
control center
D
regulator
Explanation: 

Detailed explanation-1: -The atrioventricular (AV) node is the “gatekeeper” between the atria and the ventricles and is located at the AV junction on the right side of the heart (Figure 1A). The primary role of the node is to conduct the action potential from the atria to the ventricles.

Detailed explanation-2: -The AV node plays a gatekeeper role delaying the signal between the atria and the ventricles; this prevents premature contractions of the ventricle that has not filled.

Detailed explanation-3: -The atrioventricular (AV) node is a small structure in the heart, located in the Koch triangle, [1] near the coronary sinus on the interatrial septum.

Detailed explanation-4: -The atrioventricular node is the second of several components of the cardiac conduction system. This intrinsic conduction system is responsible for generating impulses for the contractions of the heart and ensuring coordinated blood flow through the chambers of the heart.

There is 1 question to complete.