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Cardiovascular System
Next Generation: HS.LS1.2 MS.LS1.3 MS.LS1.3 NGSS

Cardiovascular System

Author: Nathan Lampson
Description:

This lesson will identify the main structures and function of the cardiovascular system as one of the 11 organ systems of the human body.

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Tutorial

Cardiovascular System Overview

Source: Images from Adobe Illustrator; Public Domain

Terms to Know
Arteries

A large diameter blood vessel that carries blood away from the heart.

Arterioles

A smaller diameter blood vessel that carries blood away from the heart.

Blood Vessels

Tubes that carry blood to and from the heart and body.

Capillaries

The smallest blood vessel that acts as a zone of diffusion between blood and tissues.

Cardiovascular System

A body system composed of the heart and blood vessels that acts to transport blood throughout the body.

Heart

A muscular pump that pumps blood throughout the body.

Veins

A large diameter blood vessel that returns blood to the heart.

Venules

A small diameter blood vessel that returns blood to the heart.