Can anyone explain this in more engineering terms? Biology can be difficult for me to read and to understand.
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basically, the heart pumps blood in and out by contracting and expanding. each time it does this it sort of tenses or relaxes the muscle rapidly, which is felt as the beat (in the chest). as the blood rapidly travels around the body through the veins, it can also be felt in certain spots like the neck and wrists.
TLDR it rapidly pushes the blood around the body in a regular contracting/expanding motion
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