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Ms.Calloway is a student nurse who is teaching her client about the anatomy and physiology of the heart.What does she teach her client is the primary pacemaker of the heart?
A) SA node
B) AV node
C) Purkinje fibres
D) Bundle of HIS
Primary Pacemaker
denotes the sinoatrial (SA) node in the heart, which naturally sets the pace for heart rate by sending out electrical impulses.
SA Node
The sinoatrial node, a group of cells in the right atrium of the heart that regulates the heart's electrical rhythm.
AV Node
The atrioventricular node, a component of the heart's electrical system responsible for delaying the transmission of electrical impulses from the atria to the ventricles.
- Grasp the anatomy and physiology of the heart, focusing on the conduction system.
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Learning Objectives
- Grasp the anatomy and physiology of the heart, focusing on the conduction system.
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