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Blood Vessels

A system of tubes running through your body that allows your organs to communicate and share resources.

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Blood Vessels
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Vocabulary

aorta

aorta

The largest artery; receives blood directly from the heart.
artery

artery

Type of blood vessel that carries blood away from the heart toward the lungs or body.
blood pressure

blood pressure

Force exerted by circulating blood on the walls of blood vessels.
blood vessel

blood vessel

Vessel that transports blood; includes the arteries, veins, and capillaries.
capillary

capillary

Smallest type of blood vessel that connects very small arteries and veins.
constriction

constriction

Narrowing of the blood vessels; occurs when the muscular walls of blood vessels contract.
dilation

dilation

Widening of the blood vessels; occurs when the walls of blood vessels relax.
hypertension

hypertension

High blood pressure.
inferior vena cava

inferior vena cava

The vein that receives blood directly from the heart.
superior vena cava

superior vena cava

The vein that brings blood back to the heart from the upper body.
vein

vein

Type of blood vessel that carries blood toward the heart from the lungs or body.

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