Hypothenar eminence | |
Latin: | eminentia hypothenaris |
Insertion: | 5th metacarpal and proximal phalynx |
Blood: | Ulnar artery |
Nerve: | Deep branch of ulnar nerve |
Action: | Control movement of the 5th digit |
The hypothenar muscles are a group of three muscles of the palm that control the motion of the little finger.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]