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Group of three muscles of the palm From Wikipedia, the free encyclopedia
The hypothenar muscles are a group of three muscles of the palm that control the motion of the little finger.
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 |
The three muscles are:[1]
The muscles of hypothenar eminence are from medial to lateral:
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]
"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]
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