Overview: Muscular System

by Erick Ortiz

Types of Muscles

There are three types of muscle, skeletal or striated, cardiac, and smooth. Muscle action can be classified as being either voluntary or involuntary. Cardiac and smooth muscles contract without conscious thought and are termed involuntary, whereas the skeletal muscles contract upon command.

Muscle Fanctions

Protect internal organs

Open and close opening

Produce heat

Maintain posture

Provide movement

Provide the movement of blood, food and waste through the body