MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is true regarding the structures of the electrical conduction system?
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Th Av node is the pacemaker
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In normal sinus rhythm, the electrical signal arises within the SA node
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The His-Purkinjie system spreads the electrical signal from the right atrium to the left atrium
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The purple of the AV node is to increase the speed at which the cardiac impulse moves from the atria to the ventricles
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Explanation:
Detailed explanation-1: -Which of the following statements is true about the SA (sinoatrial) node? The pacemaker cells, which establish the heart rate, are located in the SA node.
Detailed explanation-2: -An electrical stimulus is generated by the sinus node (also called the sinoatrial node, or SA node). This is a small mass of specialized tissue located in the right upper chamber (atria) of the heart. The sinus node generates an electrical stimulus regularly, 60 to 100 times per minute under normal conditions.
Detailed explanation-3: -Sinoatrial node. The sinoatrial (SA) node is a cluster of cells that act as a natural pacemaker for your heart. Atrioventricular node. Bundle of His. Bundle branches. Purkinje fibers. 17-Mar-2022
There is 1 question to complete.