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Arteriole
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Arteriole

An arteriole is a blood vessel that branchs out from an artery and leads to capillaries.

Arterioles are muscularized and are considered the primary site of vascular resistance, which determines the overall blood pressure of the body.

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Cardiovascular system
Heart - Aorta - Arteries - Arterioles - Capillaries - Venules - Veins - Venae cavae; - Pulmonary arteries; - Lungs - Pulmonary veins;s - Blood