juliestaten99201 juliestaten99201

18-10-2022
Biology

Answered

Which of the following is NOT a population of pacemaker cells in the heart? A) sinoatrial (SA) node. B) papillary muscles. C) atrioventricular (AV) node

Answer :

Martebi Martebi

21-10-2022

The option that is not a population of pacemaker cells in the heart is option B) papillary muscles.

Do AV and SA nodes act as pacemakers?

Yes, The upper heart chambers (atria) contract as a result of an electrical signal made by the SA (sinoatrial) node. The lower heart chambers (ventricles) then contract or pump as a result of the signal as it travels via the AV (atrioventricular) node.

Therefore, The sinus node also makes electrical impulses, which set up a healthy heart's typical rhythm and pace. Consequently, the SA node is referred to as the heart's natural pacemaker.

Learn more about pacemaker cells from

https://brainly.com/question/13254934
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