Planar Joint

A planar joint is a synovial joint in which the articulating surfaces are flat or slightly curved and glide over each other. It allows for movements such as gliding and sliding, but not rotation or twisting. Examples include the joints between the clavicle and scapula bones.

Clavicle

The clavicle, also known as the collarbone, is a long, curved bone located between the shoulder blade and the sternum. It serves several vital functions in the human body. Most importantly, it provides structural support, helping maintain the shoulder's position and allowing for a wide range of arm movements.

Scapula

The scapula, commonly known as the shoulder blade, is a flat triangular bone located on the back of the shoulder. It plays a vital role in the movement and stability of the shoulder joint. The scapula provides attachment points for several muscles that control arm and shoulder movements, allowing for a wide range of motion.