Physical Therapy Toolbox: abductor digiti minimi (hand)

Origin: pisiform bone and tendon of flexor carpi ulnaris muscle

Insertion: base of the proximal phalanx of the 5th finger and ulnar aspect of extensor expansion

Action: abducts little finger

Innervation: deep branch of ulnar nerve, C8 and T1

Blood Supply: ulnar artery


Images (Click on image for larger view)


The muscles of the left hand. Palmar surface. (Abductor digiti minimi [quinti] visible at center left in red.)


Forearm transverse section across the wrist and digits


The radial and ulnar arteries


Ulnar and radial arteries. Deep view



Palpation:

MMT Position:



photo    photo    photo    photo