Muscular System

• Muscle-an organ that contracts and gets shorter- this provides the force to move your body parts.

Function of Muscles• Produce movement• Maintain posture• Stabilize joints• Generate heat

Muscle Control• Voluntary muscles- muscles

that you are able to control.• Examples are leg and arm

muscles

• Involuntary Muscles- you can not move them consciously. They just keep workingExamples- heart

The Muscular SystemMuscles are responsible for all

types of body movement

Three basic muscle types are found in the body:

1.Skeletal muscle2.Cardiac muscle3.Smooth muscle

3 types of muscles

• Smooth Muscles- Include the muscles of internal organs and blood vessels. These muscles move involuntarily.

• Cardiac Muscle- Found only in the heart and also involuntary.

• Skeletal Muscles- Are voluntary and help you move.

Skeletal Muscle Characteristics

• Most are attached by tendons to

• bones

Why do I need tendons?

Tendons attach my muscles to my bone helping my body move.

Feel your tendon right above your heel in the back of your leg.

This is the thickest tendon in your body.

Muscles and bones work together

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