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SA Node

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SA Node

M
Medical background

5 Views • Sep 29, 2022

Description

The SA (sinoatrial) node generates an electrical signal that causes the upper heart chambers (atria) to contract. The signal then passes through the AV (atrioventricular) node to the lower heart chambers (ventricles), causing them to contract, or pump. The SA node is considered the pacemaker of the heart.

Keywords & Tags

#Heart anatomy #Heart #SAnode #Electric #Blood

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