Blood Vessels: Types, Anatomy, Function & Conditions - Cleveland Clinic
https://my.clevelandclinic.org/health/body/21640-blood-vessels
WEBJul 9, 2021 · Overview. What are blood vessels? Blood vessels are channels that carry blood throughout your body. They form a closed loop, like a circuit, that begins and ends at your heart. Together, the heart vessels and blood vessels form your circulatory system. Your body contains about 60,000 miles of blood vessels. There are three types of blood …
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