Flexor Digiti Minimi Brevis Muscle

Flexor Digiti Minimi Brevis Muscle Anatomy

One of the hand’s short intrinsic muscles is the flexor digiti minimi brevis. It is a member of the same muscle group as the opponens digiti minimi and abductor digiti minimi, which is known as the hypothenar muscles. The hypothenar eminence, an elevation above the base of the little finger, is formed by the hypothenar muscles on the ulnar (medial) aspect of the hand.

From the flexor retinaculum and hook of the hamate bone, the flexor digiti minimi brevis extends to the base of the little finger’s proximal phalanx. This muscle’s primary job is to flex the little finger at the metacarpophalangeal joint.

It lies along the 5th metatarsal bone.

Origin:

base of the fifth metatarsal bone.
– sheath of the tendon of the perneus longus.

Insertion

into the lateral side of the base of the proximal phalanx of the little toe.

Nerve supply:

the superficial branch of the lateral plantar nerve.

Action

flexes the proximal phalanx of a little of toe.