MT30 – DD
03/26/24

An arteriole is a very small blood vessel, which cuts off from your artery and carries the blood out of you heart to your tissues and organs. Arterioles are small blood vessels which connect to the capillaries, but they’re already smaller. Your capillaries are like a passageway where oxygen and nutrients exchange places with waste from your tissues, thanks to their very thin walls. Your smallest veins, which bring blood back to the heart, are also connected with your capillaries in order to facilitate this exchange.
Arterioles provide 80% of your blood vessels with resistance to blood flow in your body. This means they manage and control how forcefully your blood moves through your body and how much goes to your tissues at any given time. This is because of the muscles in your arterioles walls. Arterioles are able to handle the force of your heart’s blood, and when it flows from its heart into other parts of your body, they can push that blood through them. This keeps the blood pressure constant.

Histology art:
https://drive.google.com/drive/folders/1V5rCd-7XnoPfPI8ugslmgS_h9qKzvNMZ

Reference:
Cleveland Clinic. (2022, June 25). Arterioles: Anatomy and Function. Cleveland Clinic. https://my.clevelandclinic.org/health/body/23377-arterioles
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