Anatomy Of The Pronator Teres Muscle - Everything You Need To Know - Dr. Nabil Ebraheim

Dr. Ebraheim’s educational animated video describes the anatomy of the pronator teres muscle.
The pronator teres is a muscle located in the forearm.
The pronator teres muscle has two heads.
The superficial head, which is the humeral head, arises from the medial epicondyle of the humerus, and the deep head, which is the ulnar head, arises from the medial portion of the coroid process of the ulna.
The muscle is inserted into the middle of the lateral surface of the body of the radius.
The function of the pronator teres is to pronate the forearm (along with the quadratus) so that the palm of the palm turns posterior.
The pronator teres also assists in flexion of the forearm at the elbow.
When fractures occur below the insertion of the pronator teres muscle, the proximal fragment is usually pulled into pronation.
The forearm has a normal rotation range of 180°.
Sometimes decrease in rotation motion by 50° may not be noticed, however, every attempt should be made to reduce the forearm fracture well.
Proximal radius fractures are prone to malrotation.
The bicipital tuberousity of the radius is used as a guide to the rotation of the proximal radius.
Compare the position of the thumb to the position of the radial tuberousity.
The pronator teres muscle is innervated by the median nerve.
In the condition of the high radial nerve palsy, extension of the wrist is improved by transfer of the pronator teres to the extensor carpi radialis brevis muscle.
Main relationships to the pronator teres muscls:
• The median nerve passes between the two heads of the pronator teres muscle.
• The ulnar head (deep head) separates the median nerve from the ulnar artery.
• The median nerve runs above the deep head while the ulnar artery runs below the deep head.



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Background music provided as a free download from YouTube Audio Library.
Song Title: Every Step