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Muscular SystemMaking the Body Move

Voluntary – you can control

Involuntary – work independently

Muscles are Smart

3 Types of

Muscle

Involuntary

Found throughout the body in organs and other tissues

Smooth Muscle

Involuntary

Found in the heart

Cardiac Muscle

Voluntary

Attaches to bones for movement

Skeletal Muscle

Flexors – Contract to pull muscles to flex at a joint. Relax during extension.

Extensors – Contract to extend a muscle. Relax when flexing

http://youtube/b1nywcSvpXo

Skeletal Muscle

Tendons – attach muscle to bone Achilles tendon

The muscular system also includes…

hamstrings