Pronator Teres - Muscle Physiology & Functional Anatomy


Pronator Teres Muscle




  • Humeral head

    • Medial epicondyle, medial supracondylar ridge & medial intermuscular septum of the humerus

  • Ulnar Head

    • Medial border of the coronoid process of the ulnar


  • Just posterior to most prominent part of lateral convexity of radius

Major Arteries:

  • Ulnar artery

  • Radial artery


Neural Innervation:

  • Medial nerve (C6-C7)


Trigger Points: 

Pronator Teres Trigger Points




Concentric Functions:

  • Pronates forearm

  • Assists during elbow flexion (weak)

Eccentric Functions:

Isometric Function:

Related Muscles





More Images of the Pronator Teres Muscle

Pronator Teres

More Information about the Pronator Teres Muscle

The ulnar head of the pronator teres muscle is sometimes absent.  Pronator teres syndrome is a type of neurogenic pain due to compression of the median nerve of the elbow.  A common symptom of pronator teres syndrome is  numbness in median nerve distribution with repetitive pronation/supination of the forearm.


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