Pronator Quadratus Anatomy
Origin: Distal one-fourth of the anteromedial surface of the ulna.
Insertion: Distal one-fourth of the anterolateral surface of the radius.
Actions: Pronation of the forearm
Innervation: Anterior interosseous branch of the median nerve (C8, T1)
Blood Supply: Muscular branches from the radial artery and the anterior interosseous artery from the ulnar artery.
Primary Actions of the Pronator Quadratus
1. Pronation of the forearm
Agonists:
- Pronator teres
Antagonists:
- Supinator
- Biceps brachii
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For pain and symptom information see: Pronator Quadratus Forearm, Wrist, Thumb Pain and Symptoms
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!