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Blood Type Vessel Thickest Muscle Layer Arterioles Contract

Arterioles have the thickest muscle layer among blood vessels because they need to contract to regulate and slow blood flow into capillaries.

- arterioles - to contract and slow blood flow into capillaries

Front What type of blood vessel has the thickest muscle layer and why?
Back - arterioles
- to contract and slow blood flow into capillaries

Tags: blood

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