Name the major functions of the skeletal system.

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Understand that the skeletal system is composed of bones, cartilage, ligaments, and joints, and it serves multiple essential functions in the body.

Identify the first major function: Support. The skeleton provides a structural framework that supports the body and maintains its shape.

Recognize the second function: Protection. Bones protect vital organs, such as the skull protecting the brain and the rib cage protecting the heart and lungs.

Consider the third function: Movement. Bones act as levers and attachment points for muscles, enabling body movement when muscles contract.

Acknowledge additional functions such as mineral storage (e.g., calcium and phosphorus), blood cell production (hematopoiesis in bone marrow), and fat storage in yellow marrow.

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Support and Structure

The skeletal system provides a rigid framework that supports the body and maintains its shape. Bones act as the structural foundation for muscles and organs, enabling upright posture and physical form.

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3:43

Support Structures

Protection of Vital Organs

Bones protect critical internal organs from injury. For example, the skull shields the brain, the rib cage guards the heart and lungs, and the vertebrae protect the spinal cord.

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02:59

Protection and Support

Movement Facilitation

Bones serve as attachment points for muscles, enabling movement through joints. When muscles contract, they pull on bones, producing motion essential for daily activities and locomotion.

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