Abductor Digiti Minimi

Last updated on Friday, April 17 2009 by blondarb

Muscle Name: abductor digiti minimi

AKA: musculus abductor digiti minimi manus

Abbreviation: ADM

Spinal Nerve Roots:
C8
T1

Brachial Plexus Trunks:
lower trunk

Brachial Plexus Cords:
medial cord

Named Nerves:
ulnar nerve

Proximal Attachment: pisiform

Distal Attachment: base of the proximal phalanx of the 5th digit on the ulnar or medial side

Action: Abducts little finger

Needle Insertion: Midpoint of the fifth metacarpal

Activation for EMG: Have the pathient spread apart their fingers.

Pitfalls:

Notes:

Related videos:

Abductor Digiti Minimi EMG Technique
A demonstration of the needle placement and activation technique in an EMG study of the Abductor Digiti Minimi (ADM) muscle.

Related images:

Abductor Digiti Minimi Surface View
This is a photograph of the medial aspect of the hand, showing the surface anatomy relevant to the abductor digiti minimi muscle.