The Muscular System.The body muscles perform many

functions. .Muscles are able to contracts ,or get

shorter, and relax. .Contraction and relaxing muscles allow you to bend and straighten

your body parts .

Types of MusclesThere are 3 types of muscles:

1 .Skeletal ( Striated ) = are connected to bones to provide movements.

2 .Smooth = present in viscera , blood vessels and skin.

3 .Cardiac muscles

Types of Muscles

Nerve supply of the muscles

1 .Skeletal ( Striated ) = are voluntary , supplied by peripheral nerves

2 .Smooth = are involuntary , supplied by autonomic nervous system .

3 .Cardiac muscles =are striated involuntary , supplied by autonomic nervous

system supplied by autonomic nervous system

Nerve supply of the musclesه

The Striated muscles

The body muscles

The back muscles

Muscles of the Upper limb

Lower limb muscles

Muscles of the trunk

Muscles of facial expressions