The Muscular System



The Muscular System 2445
Photo by: julien tromeur

6 The Muscular System

The muscular system is the body's network of tissues that controls movement both of the body and within it. Walking, running, jumping: all these actions propelling the body through space are possible only because of the contraction (shortening) and relaxation of muscles. These major movements, however, are not the only ones directed by muscular activity. Muscles make it possible to stand, sit, speak, and blink. Even more, were it not for muscles, blood would not rush through blood vessels, air would not fill lungs, and food would not move through the digestive system. In short, muscles are the machines of the body, allowing it to work.

Design: parts of the muscular system

Workings: how the muscular system functions

Ailments: what can go wrong with the muscular system

Taking care: keeping the muscular system healthy

For more information

User Contributions:

1
louise
⚠
yes it's true that without the muscles, blood would not rush through blood vessels, air would not fill lungs, and food would not move through the digestive system. In short, muscles are the machines of the body, allowing it to work.

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