The elbow joint connects the upper arm to the forearm, allowing for a range of movements essential for daily activities, such as throwing, lifting, and swinging. It involves bones, muscles, ligaments, tendons, and nerves working together to allow various types of movements.
The elbow joint has three bones. The upper arm bone, the humerus, connects with the two forearm bones, the ulna and the radius, at your elbow.
Each bone has cartilage on the end to help them slide against each other and absorb shock. The tendons in your arms connect the bones to muscles to allow movement in different ways.
Any harm to these parts of your elbow due to overuse injuries, inflammation, trauma, or degenerative changes can cause elbow pain.