norahinto norahinto

02-10-2018
Biology

contestada

What happens to the blood vessels in hot and cold weather?

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tytyhelps tytyhelps

02-10-2018

blood vessels expand during hot weather and retract/ tighten in cold weather

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wananikwecurley99 wananikwecurley99

02-10-2018

When temperatures hit 50 degrees, your blood vessels narrow to reduce blood flow near the body's surface. Sometimes the blood vessels dilate and burst, which causes redness.

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