[Histochemical study and classification of facial muscles fibers].
Zhonghua Zheng Xing Wai Ke Za Zhi
; 16(4): 233-5, 2000 Jul.
Article
en Zh
| MEDLINE
| ID: mdl-11593680
ABSTRACT
OBJECTIVE:
To study the histological and histochemical characteristics of the facial muscle fiber.METHODS:
Seven biopsy specimens of the facial muscle from twelve patients were stained with histochemical method. The diameter and the histochemical type of the fibers were analysed by staining of M-ATP ase and NADA-TR. Type I and type II fibers were evaluated respectively by means of computer-assisted image analysis.RESULTS:
The fiber diameter is between 24.3-63.9 microns. According to the quantity of fiber I, facial muscles may be classified into three groups 1. Phasic muscle contains less than 20 percent of type I fibers; 2. Intermediate muscle contains 21 to 40 percent of type I fibers; 3. Tonic muscle contains 41 to 69 percent of type I fibers.CONCLUSION:
The results of the study show that the histological and histochemical difference of facial muscles may have significance in facial paralysis restoration.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fibras Musculares Esqueléticas
/
Músculos Faciales
Límite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
Zh
Revista:
Zhonghua Zheng Xing Wai Ke Za Zhi
Año:
2000
Tipo del documento:
Article