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What are arterioles?

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  1. American Heart Association
     
    American Heart Association answered:

    Arterioles are small, muscular branches of arteries. When they contract, they increase resistance to blood flow, and blood pressure in the arteries increases.

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    Arterioles are small, muscular branches of arteries. When they contract, they increase resistance to blood flow, and blood pressure in the arteries increases. More

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