Hypothenar

Hypothenar eminence

Hypothenar eminence

Group of three muscles of the palm

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
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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]

See also

References

  1. [1]
    "Intrinsic Muscles of the Hand - Wheeless' Textbook of Orthopaedics". Retrieved 2008-01-16.
  2. [2]
    "Medical mnemonics". LifeHugger. Archived from the original on 2011-07-13. Retrieved 2009-12-19.
  3. [3]
    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.
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