Question

what is heart beat??​

Answer 1

Answer:

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• A heartbeat is a two-part pumping action that takes about a second. As blood collects in the upper chambers (the right and left atria), the heart’s natural pacemaker (the SA node) sends out an electrical signal that causes the atria to contract. This contraction pushes blood through the tricuspid and mitral valves into the resting lower chambers (the right and left ventricles). This part of the two-part pumping phase (the longer of the two) is called diastole.

Answer 2

Answer:

Heartbeat is defined as the pulse of your heart, or a single short moment, or something that acts as a unifying force. When your heart pulses and pumps blood throughout your body, this is an example of a heartbeat.