Medial epicondyle of humerus
The medial epicondyle is a bony projection found at the distal end of the medial supracondylar ridge of the humerus. It is larger than its lateral counterpart and acts as an important attachment site for muscles and ligaments of the forearm.
Muscles which arise from the medial epicondyle of the humerus include the pronator teres, flexor carpi radialis, palmaris longus, flexor digitorum superficialis, and flexor carpi ulnaris muscles (superficial muscles of anterior compartment of the forearm). The ulnar collateral ligament also arises from the medial epicondyle and plays an important role in stabilizing the elbow joint.
Located along the posterior surface of the medial epicondyle is a shallow depression known as the groove for the ulnar nerve. This groove provides a protected passageway for the ulnar nerve.
The medial epicondyle is the final ossification center of the elbow to ossify and does not fully ossify until the age of 14 or 15 years. As a result the medial epicondyle of the humerus in children and adolescents is frequently susceptible to injury.
English: Medial epicondyle of humerus
Latin: Epicondylus medialis humeri
|Definition||Bony prominence at distal end of medial supracondylar ridge of humerus|
|Function||Attachment for: Pronator teres, flexor carpi radialis, palmaris longus, flexor digitorum superficialis, and flexor carpi ulnaris muscles; ulnar collateral ligament|
Take a closer look at the landmarks of the humerus in the study unit below.
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