Accessory abductor digiti minimi muscle (hand)
Citation, DOI, disclosures and article data
Citation:
Bell D, Feger J, Hacking C, et al. Accessory abductor digiti minimi muscle (hand). Reference article, Radiopaedia.org (Accessed on 08 Dec 2024) https://doi.org/10.53347/rID-66818
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rID:
66818
Article created:
Disclosures:
At the time the article was created Daniel J Bell had no recorded disclosures.
View Daniel J Bell's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Joachim Feger had no financial relationships to ineligible companies to disclose.
View Joachim Feger's current disclosures
Revisions:
7 times, by
5 contributors -
see full revision history and disclosures
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Synonyms:
- Accessory abductor digiti minimi (ADM) muscles
An accessory abductor digiti minimi (ADM) muscle is the most common accessory muscle of the hand and wrist, found in 24% of individuals on the hypothenar eminence. When present it is one of the intrinsic muscles of the hand.
Summary
-
origin:
antebrachial fascia passing anteriorly to Guyon canal
occasionally arises from the palmaris longus tendon
-
insertion: abductor digiti minimi (ADM) muscle
or an insertion discrete from the ADM proper, into the medial aspect of the base of the proximal phalanx
arterial supply: ulnar artery
innervation: deep branch of ulnar nerve
action: flexion of the 5th metacarpophalangeal joint
References
- 1. Sookur P, Naraghi A, Bleakney R, Jalan R, Chan O, White L. Accessory Muscles: Anatomy, Symptoms, and Radiologic Evaluation. Radiographics. 2008;28(2):481-99. doi:10.1148/rg.282075064 - Pubmed
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