Joint Structure - Musculoskeletal System

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Our body has many joints. Joints are like the hinges of our body. Without joints, our bodies would be stiff as a board. For example, we wouldn't be able to bend our arms or legs. Joints are part of the musculoskeletal system, or locomotor system, since they involve both muscles and bones, and help our body to move. Read on to learn more about our body joints, and how they work.

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Human Joint structure
Human Joint structure

The musculoskeletal system provides an important function of our body. It provides form, stability and movement to the body. A main part of the musculoskeletal system is the joint. The word joint is used to describe how bones are connected to other bones and muscle fibers using connective tissue such as tendons and ligaments.

There are different types of joints. Some joints, such as the shoulder and the hip joint, are formed with a ball and socket type joint. Other joints, such as the elbow or knee, are formed where the ends of two or more bones come together.

Joints consist of bones, muscles, cartilage, tendons, ligaments and other connective tissue. Muscles keep the bones in place and also through contraction or extension help move the bones. Cartilage prevents the bone ends from rubbing directly on to each other. Cartilage is not as hard and rigid as bone, but is stiffer and less flexible than muscle. Tendons are bands of fibrous tissue that connect muscles to bones. Ligaments are bands of fibrous tissue that connect the ends of bones together to form a joint.


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