Question

what is vein...
what is the meaning of heart beat...


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Answer 1

Answer:

Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation. Arteries and veins are two of the body's main type of blood vessels. These vessels are channels that distribute blood to the body.

Answer 2

Answer:

one complete pulsation of the heart. 2 : the vital center or driving impulse. 3 : a brief space of time : flash —used chiefly in the phrase in a heartbeat.

Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation. Arteries and veins are two of the body's main type of blood vessels. These vessels are channels that distribute blood to the body.

Explanation:

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