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Number and size of motor units in thenar muscles
Author(s) -
Neto Humberto Santo,
Filho José Meciano,
Passini Renato,
Marques Maria Julia
Publication year - 2004
Publication title -
clinical anatomy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 71
eISSN - 1098-2353
pISSN - 0897-3806
DOI - 10.1002/ca.10205
Subject(s) - medicine , anatomy , physical medicine and rehabilitation
The number and size of motor units (MUs) in the thenar muscles of 10 fresh adult cadavers (33–74 years old) were estimated by histological methods. The average number of MUs was 161 ± 26 and the MU size was 93 ± 11.5. Adductor pollicis showed a significantly greater MU size. The number of MUs in our histological study was in agreement with the number reported in previous studies using multiple point stimulation, the method currently used in the clinical investigation of neuromuscular disorders. Clin. Anat. 17:308–311, 2004. © 2004 Wiley‐Liss, Inc.