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In: Anatomy and Physiology

Describe in detail the action potential of an SA nodal cell of the heart. Be sure...

Describe in detail the action potential of an SA nodal cell of the heart. Be sure to names the phases, include the main types of membrane proteins involved, how they are opened, the movements of ions, and the changes in membrane potential. Explain how this type of action potential is different from that seen in a skeletal muscle cell and why the difference(s) are significant.

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Expert Solution

Components of conduction system in heart
Five components
1.   Sinoatrial node (SA node)
2.   Atrioventricular node (RV node)
3. atrioventricular buncle (of His)
4.   Right and left branches of bundle of His
5.   Subendocardial Purkinje fibres

SA node represents atrial contraction and beats 60-100 bpm(beats per minute)

Sydney Mullin answered 1 year ago
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