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Fiber Types Distribution in the Digastric Muscle of Tufted Capuchin Monkey (Cebus apella)

Andreo, J. C. ; Pai, V. D. ; Navarro, J. A. C. ; DE Oliveira, J. A.

Anatomia, histologia, embryologia, 1994-09, Vol.23 (3), p.226-231 [Periódico revisado por pares]

Oxford, UK: Blackwell Publishing Ltd

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  • Título:
    Fiber Types Distribution in the Digastric Muscle of Tufted Capuchin Monkey (Cebus apella)
  • Autor: Andreo, J. C. ; Pai, V. D. ; Navarro, J. A. C. ; DE Oliveira, J. A.
  • Assuntos: Animals ; Cebus - anatomy & histology ; Cebus - physiology ; Histocytochemistry ; Male ; Masticatory Muscles - anatomy & histology ; Masticatory Muscles - physiology
  • É parte de: Anatomia, histologia, embryologia, 1994-09, Vol.23 (3), p.226-231
  • Notas: istex:3B20355415765DF1C1B1FAACE391D77E2CEB8833
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    ArticleID:AHE226
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    content type line 23
  • Descrição: Summary Fiber types distribution in the diagastric muscle of tufted capuchin monkey was studied by means of NADH‐TR, myosin‐ATPase, after alkaline and acid preincubations and SDH histochemical reactions. Three different types of fibers were found presenting an equal distribution. The percentage and types of fibers were as follow: 18.2 % SO (Slow Oxydative), 38.4 % FOG (Fast Oxydative Glycolytic) and 43.4 % FG (Fast Glycolytic). FG fibers revealed the largest area. The relatively high concentration of fast twitch (81.2 %) seems to indicate this muscle is involved with the acceleration and fast speed of jaw movements. Aerobic metabolism represented by SO + FOG fibers (56.6 %) suggestes that this muscle possesses an additional role than that related to the lowering of the jaw.
  • Editor: Oxford, UK: Blackwell Publishing Ltd
  • Idioma: Inglês

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