The Function of the Skeletal & Muscular System

Updated March 23, 2017

The skeletal and muscular systems work separately and in conjunction to provide structural support, organ protection, mobility and warmth. The skeletal system is comprised of 206 bones, and muscle makes up about 40 per cent of body weight.

Skeletal System Functions

One of the skeletal systems functions is to act as your body's framework, providing support and structure. It also protects vital organs such as the heart, lungs and brain. Calcium is stored in the bones, and blood cells are produced in bone marrow.

Skeletal Divisions

The two parts of the skeletal system are the axial skeleton (skull, spine, sternum and ribs) and the appendicular skeleton (upper and lower extremities, pectoral and pelvic bones).

Muscular System Functions

The human body has over 650 muscles, most of which are attached to the skeletal system and facilitate movement by relaxing and contracting. Muscles keep the body warm with heat generated through movement.

Types of Muscles

The muscular system is made up of skeletal, smooth and cardiac muscle. Skeletal muscle is attached to bones; smooth muscle makes up parts of the stomach, intestines, veins and arteries; and cardiac muscle is found only in the heart.

Diseases and Disorders

Leukaemia, osteoporosis and arthritis can affect your bones and skeletal system. Muscular dystrophy is a genetic disorder that steadily weakens the body's muscles.

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About the Author

Nadine Ali has written for local publications including the "North Bergen Reporter" and "The Montclarion," as well as online for various websites. She is currently pursuing a graduate degree in psychology and social work.