Question

6. which note recieves two beats

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Answer 1

The AV node receives two inputs from the right atrium: posteriorly, via the crista terminalis, and anteriorly, via the interatrial septum. Contraction of heart muscle cells requires depolarization and repolarization of their cell membranes. Movement of ions across cell membranes causes these events.

System: Electrical conduction system of the heart

Acronym(s): AV node

Artery: Atrioventricular nodal branch

Answer 2

The AV node receives two inputs from the right atrium: posteriorly, via the crista terminalis, and anteriorly, via the interatrial septum. Contraction of heart muscle cells requires depolarization and repolarization of their cell membranes. Movement of ions across cell membranes causes these events.
Acronym(s): AV node
Artery: Atrioventricular nodal branch
System: Electrical conduction system of the heart

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