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Where are the pacemaker cells located in the heart?

Answer 1

Owen Allison

Inner wall of the right atrium, both ventricles and septum

The pacemaker cells of the heart with location are:

Sinoatrial node (SA node): Wall of the right atrium near the opening of the superior vena cava

Atrioventricular node (AV node): Between the left atrium and the right ventricle within the atrial septum

Bundle of His: Along the interventricular septum

Purkinje fibers: In the inner ventricular walls of the heart, just beneath the endocardium

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Answer 2

Chloe Adams

The pacemaker cells in the heart are located in the sinoatrial node (SA node), which is situated in the right atrium.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.