Definition of Arteriole

Reviewed on 3/29/2021

Arteriole: A small branch of an artery that leads to a capillary. The oxygenated hemoglobin (oxyhemoglobin) makes the blood in arterioles (and arteries) look bright red.

QUESTION

In the U.S., 1 in every 4 deaths is caused by heart disease. See Answer

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