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Blood Vessels

Blood Vessels

Description:

This lesson will classify the various types of blood vessels depending on their structure and function.

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Tutorial
Terms to Know
Arteries

Vessels of the largest diameter that carry blood away from the heart.

Arterioles

Smaller vessels that branch from arteries that carry blood away from the heart.

Blood Vessels

Tubes that transport blood throughout the body.

Capillaries

The smallest vessels that act as zones of diffusion between blood and tissues.

Pulse

The surge of pressure felt in an artery when ventricles of the heart contract.

Veins

Large diameter vessels that return blood back to the heart and contain valves to prevent backflow of blood.

Venules

Small vessels that merge with capillaries to carry blood back to the heart.