Hypothenar eminence

The hypothenar muscles are a group of three muscles of the palm that control the motion of the little finger.

Carpal tunnel and thenar and hypothenar eminences

Hypothenar eminence
The mucous sheaths of the tendons on the front of the wrist and digits. (Hypothenar eminence labeled at center right.)
Transverse section across the wrist and digits. (Muscles of little finger labeled at upper right.)
Details
Insertion	5th metacarpal and proximal phalynx
Artery	Ulnar artery
Nerve	Deep branch of ulnar nerve
Actions	Control movement of the 5th digit
Identifiers
Latin	eminentia hypothenaris
TA98	A01.2.07.024
TA2	307
FMA	61523
Anatomical terms of muscle [edit on Wikidata]

The three muscles are:^[1]

• Abductor digiti minimi
• Flexor digiti minimi brevis
• Opponens digiti minimi

Structure

The muscles of hypothenar eminence are from medial to lateral:

• Opponens digiti minimi
• Flexor digiti minimi brevis
• Abductor digiti minimi

The intrinsic muscles of hand can be remembered using the mnemonic, "A OF A OF A" for, Abductor pollicis brevis, Opponens pollicis, Flexor pollicis brevis (the three thenar muscles), Adductor pollicis, and the three hypothenar muscles, Opponens digiti minimi, Flexor digiti minimi brevis, Abductor digiti minimi.^[2]

Clinical significance

"Hypothenar atrophy" is associated with the lesion of the ulnar nerve, which supplies the three hypothenar muscles.

Hypothenar hammer syndrome is a vascular occlusion of this region.^[3]

See also

• Thenar eminence
• Palmaris brevis