Description

Origin: Hook of hamate and flexor retinaculum

Insertion: Medial border of 5th metacarpal

Artery: Ulnar artery

Nerve: Deep branch of ulnar nerve (C8 andT1)

Action: Draws 5th metacarpal anteriorly and rotates it, bringing little finger (5th digit) into opposition with thumb

Description:
The Opponens digiti minimi is of a triangular form, and placed immediately beneath the preceding muscles. It arises from the convexity of the hamulus of the hamate bone, and contiguous portion of the transverse carpal ligament; it is inserted into the whole length of the metacarpal bone of the little finger, along its ulnar margin.


Cette définition contient du texte provenant d'une édition publique de Gray's Anatomy (20eme édition Américaine de "Gray's Anatomy of the Human Body" publiée en 1918 - http://www.bartleby.com/107/).

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