This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Opponens digiti minimi muscle (anatomy)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Opponens digiti minimi is one of the hypothenar muscles. It lies deep to the flexor and abductor muscles.

It originates from the hook of the hamate bone of the wrist and the flexor retinaculum. It passes in an ulnar and distal direction to insert into the ulnar border of the shaft of the fifth metacarpal bone.

It is innervated by the deep branch of the ulnar nerve (C8,T1).

The action of opponens digiti minimi are to oppose the little finger to thumb by:

  • flexion of the fifth metacarpal
  • lateral rotation of the carpometacarpal joint of the fifth digit
  • lateral rotation of the metacarpophalangeal joint of the fifth digit

Related pages

Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page