How does the heart beat? From the sinoatrial node to muscle contraction

Outlines the basic structure of the #heart and explains how the #heartbeat is initiated by a spontaneous electrical signal in the #sinoatrial node, known as an action potential. Covers the spread of the #actionpotential through the heart to trigger #calcium entry into the muscle and how this causes the heart to beat. The #heartvalves that regulate the direction of #bloodflow through the heart are also briefly outlined.

[@ray-hj1do]

thank you i am study in medical

[@nilamudeenzulfan4472]

Good explanation ❤

[@professorGpharm]

Glad you think so!

[@DocsNetwork]

❤

[@professorGpharm]

thank you

[@bvvprasadnaik5807]

Madam thank you 🎉🎉🎉🎉🎉

[@professorGpharm]

Welcome 😊

[@waliahmed5233]

Still,Heart is the idle organ of our body,because it takes rest for 0.8 second in a cardiac cycle.

[@waliahmed5233]

Sorry,please read 0.5 second inplace of 0.8.