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Pronator Teres Anatomy: Origin, Insertion, Action, Innervation

Pronator Teres Anatomy

Pronator Teres Muscle

Origin:  Humeral head: superior portion of the medial epicondyle via the common flexor tendon.
Ulnar head: coronoid process of the ulna.
Insertion:  Lateral aspect of the mid shaft of the radius.
Actions: Pronation of the forearm
Innervation: Median nerve (C6 C7)
Blood Supply: Muscular branches from the ulnar and radial arteries.

Primary Actions of the Pronator Teres

1. Pronation of the Forearm
Agonists:

  • Pronator Quadratus

Antagonists: 

  • Biceps Brachii, Supinator

If you are looking for symptoms and pain information please visit the Pronator Teres Pain Page.

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Secondary Actions of the Pronator Teres

2. Assists with flexion of the forearm at the elbow
Agonists:

  • Brachialis
  • Biceps Brachii
  • Brachioradialis

Antagonists:

  • Triceps Brachii
  • Anconeus
Pronator Teres Referred Pain Pattern

For pain and symptom information see: Pronator Teres Pain and Symptoms

Recommended Muscle Anatomy Books

An excellent book for those beginning the study of anatomy. Coloring helps memory retention.

For intermediary anatomy students learning skeletal and muscle structure.

For beginning and intermediary anatomy . Muscle overlays on the human body. Excellent visuals!