SA node & AV node (heart anatomy)

The muscle of the heart contracts regularly in a co-ordinated manner, and it must for the heart to pump blood effectively. The cells of the sinoatrial node and atrioventricular node, plus some other special cells, are integral to this happening. Let's look at the anatomy of the conducting system of the heart.


Music:
Wake Up Call by Gregory David
https://www.epidemicsound.com/track/c...