skjelettsystemets

The skjelettsystemet, or skeletal system, is the framework of the human body. It is composed of bones, cartilage, ligaments, and tendons. The primary functions of the skeletal system include providing structural support, protecting internal organs, facilitating movement, storing minerals, and producing blood cells. Bones, the main components, are living tissues that constantly undergo remodeling. They vary in shape and size, classified as long bones, short bones, flat bones, and irregular bones.

The human skeleton is typically divided into two main parts: the axial skeleton and the appendicular skeleton. The axial skeleton includes the skull, vertebral column (spine), and rib cage, forming the central axis of the body. The appendicular skeleton consists of the bones of the limbs (arms and legs) and the girdles that connect them to the axial skeleton (shoulder and pelvic girdles). Cartilage is a flexible connective tissue found in joints, the nose, ears, and trachea. Ligaments are tough bands of fibrous tissue that connect bones to other bones, providing stability to joints. Tendons are similar fibrous tissues that connect muscles to bones, enabling movement. The skeletal system is vital for overall health and mobility.