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

The three muscles are:^[1]

Structure

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]

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]

References

^ "Intrinsic Muscles of the Hand - Wheeless' Textbook of Orthopaedics". Retrieved 2008-01-16.
^ "Medical mnemonics". LifeHugger. Archived from the original on 2011-07-13. Retrieved 2009-12-19.
^ Cooke RA (2003). "Hypothenar hammer syndrome: a discrete syndrome to be distinguished from hand-arm vibration syndrome". Occup Med (Lond). 53 (5): 320–4. doi:10.1093/occmed/kqg071. PMID 12890831.

External links

EatonHand mus-083
Anatomy figure: 08:04-07 at Human Anatomy Online, SUNY Downstate Medical Center
Slides
lesson5mus&tendonsofhand at The Anatomy Lesson by Wesley Norman (Georgetown University)