Plural form of arteriole; multiple very small arteries that regulate blood flow throughout the body.
Standard English plural of 'arteriole,' formed by adding '-s'. Maintains the same Latin-French origins as the singular form, with the plural indicating multiple of these tiny blood vessels.
Your body contains thousands of arterioles, and they're constantly adjusting their diameter—sometimes hundreds of times per minute—to redirect blood to whichever parts of your body need it most right now.
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