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Palmaris Longus

Palmaris Longus

Description

Origin :

  • Medial epicondyle of humerus.

Insertion :

  • Distal half of flexor retinaculum and palmar aponeurosis.

Innervation :

  • Median nerve (C7 and C8).

Arterial Supply :

  • Ulnar artery.

Depth :

  • Superficial

Action

Action :

  • Flexes hand (at wrist) and tightens palmar aponeurosis.