Hypothenar eminence

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Hypothenar eminence
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The mucous sheaths of the tendons on the front of the wrist and digits. (Hypothenar eminence labeled at center right.)
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Transverse section across the wrist and digits. (Muscles of little finger labeled at upper right.)
Details
Latin eminentia hypothenaris
5th metacarpal and proximal phalynx
ulnar artery
deep branch of ulnar nerve
Actions control movement of the 5th digit
Identifiers
Gray's p.546
Dorlands
/Elsevier
h_23/12440437
Anatomical terms of muscle

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

The three muscles are:[1]

Structure[edit]

The muscles of hypothenar eminence are from lateral to medial:

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,(thenar muscles) Adductor pollicis , Opponens digiti minimi, Flexor digiti minimi, Abductor digiti minimi (Hypothenar muscles).[2]

Clinical significance[edit]

"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[edit]

References[edit]

External links[edit]