The Skeletal System

The skeletal system is the body system composed of bones and cartilage and performs the following critical functions for the human body:

• Supports the body
• Facilitates movement
• Protects internal organs
• Produces blood cells
• Stores and releases minerals and fat

The skeletal system supports the human body by holding its weight, and without the skeletal system, the human body would just be a limp mass of organs, muscle, and skin. A bone is unable to move by itself unless a muscle spans a joint and contracts. Bones also protect internal organs, like how the skull protects the brain, and how your ribs protect your lungs and heart.

Here are all of the main organ systems of the human body and some info about them:

• Nervous System
• Circulatory System
• Lymphatic System
• Respiratory System
• Endocrine System
• Urinary/Excretory System
• Reproductive System
• Digestive System
• Integumentary System
• Muscular System