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Glossary of Forearm and Hand muscles

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Origin:
Pronator Teres
Humeral head- just above the medial epicondyle of the humerus

Ulnar head - medial side of the coronoid process of the ulna
Insertion:
Pronator Teres
Middle of lateral surface of the radius
Action:
Pronator Teres
Pronates the forearm and assista in flexing the elbow joint
Trigger point:
Pronator Teres
In the belly of the muscle near the elbow attachment
Referred pain pattern:
Pronator Teres
Radial side of the forearm into the wrist and thumb
Synergist:
Pronator Teres
Pronator Quadratus
Antagonist:
Pronator Teres
Supinator
Origin:
Pronator Quadratus
Medial side of the anterior surface of the distal one-fourth of the ulna
Insertion:
Pronator Quadratus
Lateral side of the distal one-fourth of the radius
Action:
Pronator Quadratus
Pronation of the forearm
The deepest muscle of the distal forearm
Pronator Quadratus
Synergist:
Pronator Quadratus
Pronator Teres
Antagonist:
Pronator Quadratus
Supinator
Origin:
Supinator
Lateral epicondyole of the humerus, annular and radial collateral ligaments and supinator crest of ulna
Insertion:
Supinator
Lateral surface of the upper one third of the body of the radius
Action:
Supinator
Supinates the forearm
Trigger Point:
Supinator
Near the radius in the antecubital space
Referred pain patern:
Supinator
From the lateral epicondyle to the dorsal web of the thumb
The muscle that MIMICS tennis elbow
Supinator
Synergists:
Supinator
Biceps Brachii
Antagonists:
Supinator
- Pronator Quadratus
- Pronator Teres

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