Please use this identifier to cite or link to this item:
|Type:||Artigo de periódico|
|Title:||Histochemical Study Of Enzyme In Frontal Muscle Of Norfolk Rabbit (oryctolagus Cuniculus) [estudio Histoquímico De La Enzima Nadh-tr En Músculo Frontal De Conejos Norfolk (oryctolagus Cuniculus)]|
De Lima Castro H.A.
|Abstract:||The human frontal muscles has two bellies, forming, together with the occipital muscle and the aponeurotic galea, the occipitofrontal muscle. Being a striated skeletal muscle, the frontal muscle can show muscular fibers with high intensity oxidation (type I) and with low intensity oxidation (type II). A histochemical process using organic and inorganic chemical reactions allows us to obtain a product that is visible through optical microscopy. The purpose of this paper is to determine, by means of the histochemical process of the Nicotinamide Adenine Dinucleotide Tetra-zolium Reductase (NADH-TR) reaction the distribution of the number of the type I and II frontal muscle fibers of female, six to eight months old, 2.8 to 3.1 Kg English Norfolk rabbits. In 1010 fibers studied, we found 33.8% type I, 17.4% type IIA and 48.8% type IIB. The majority of fibers were type II, demonstrating this muscle's intense activity during facial mimicking. Type II fibers showed a reduced oxidative intensity, which made them subject to muscular fatigue. These findings may be of help in the study to understanding the pathological process that may occur in this muscle. © 2006 Sociedad Chilena de Anatomía.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.