- Affected person Care
- Shoulder & Elbow
- Elbow Arthroscopy Data
- The Anatomy of the Elbow
The Anatomy of the Elbow
The elbow is a hinged joint made up of three bones, the humerus, ulna, and radius. The ends of the bones are lined with cartilage. Cartilage has a rubbery consistency that enables the joints to slip simply towards each other and take up shock. The bones are held along with ligaments that type the joint capsule. The joint capsule is a fluid stuffed sac that surrounds and lubricates the joint.
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The vital ligaments of the elbow are the medial collateral ligament (on the within of the elbow) and the lateral collateral ligament (on the skin of the elbow.) Collectively these ligaments present the principle supply of stability for the elbow, holding the humerus and the ulna tightly collectively. A 3rd ligament, the annular ligament, holds the radial head tight towards the ulna.
There are tendons in your elbow that connect muscle to bone. The vital tendons of the elbow are the biceps tendon, which is connected the biceps muscle on the entrance of your arm, and the triceps tendon, which attaches the triceps muscle on the again of your arm.
The muscle tissues in your forearm cross the elbow and connect to the humerus. The surface (lateral) bump simply above the elbow is known as the lateral epicondyle. Many of the muscle tissues that straighten the fingers and wrist come collectively and connect to the medial epicondyle, or the bump on the within of your arm simply above the elbow. These two tendons are vital to grasp as a result of they’re widespread areas of tendonitis.
The entire nerves that journey down the arm move throughout the elbow. Three major nerves start collectively on the shoulder the radial nerve, the ulnar nerve and the medial nerve. These nerves are answerable for signaling your muscle tissues to work and to additionally relay sensations corresponding to contact, ache and temperature.
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