What are the major components of the human skeletal system

The human skeletal system is a complex structure that provides support, protection, movement, and mineral storage. The major components of the human skeletal system include:

1. Bones: The human skeleton consists of 206 bones at birth, which later fuse to form the adult skeleton of 206 to 213 bones, depending on individual variation.

2. Joints: Joints are the connections between bones and are crucial for movement. They can be classified into three main types: fibrous joints, cartilaginous joints, and synovial joints.

3. Cartilage: Cartilage is a connective tissue that covers the ends of bones at joints, providing a smooth surface for movement and absorbing shock.

4. Ligaments: Ligaments are tough, fibrous connective tissues that connect bones to each other, providing stability and preventing excessive movement at the joints.

5. Tendons: Tendons are fibrous tissues that connect muscles to bones, allowing the muscles to transmit force to the bones and produce movement.

6. Bone Marrow: Bone marrow is found within the cavities of certain bones and is responsible for the production of blood cells (hematopoiesis).

7. Periosteum: The periosteum is a thin membrane that covers the outer surface of bones, providing nourishment and serving as a site for ligament and tendon attachment.

8. Compact Bone: Compact bone is the dense outer layer of bones that provides strength and protection.

9. Spongy (Cancellous) Bone: Spongy bone is found inside bones and consists of a network of trabeculae. It provides structural support and is involved in the production of blood cells.

10. Bone Matrix: The bone matrix is a combination of organic and inorganic components, including collagen fibers and minerals like calcium and phosphate. This matrix gives bones their strength and flexibility.

Together, these components work in harmony to maintain the structure and function of the human skeletal system, supporting the body and facilitating movement.