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Title: Distribution Pattern of Muscle Fibre Types In Soft Palate of the Dog (Canis familiaris, L.)
Authors: Sánchez-Collado, C.
Vázquez, J. M.
Rivero, M. A. 
Martínez, F.
Ramírez, G.
Gil, F.
UNESCO Clasification: 3109 Ciencias veterinarias
Keywords: Tensor Veli Palatini
Heavy-Chain Isoforms
Expression, et al
Issue Date: 2014
Journal: Journal of Veterinary Medicine Series C: Anatomia Histologia Embryologia 
Abstract: Distribution pattern of fibre types was studied in the muscles of the soft palate (palatinus, levator veli palatini and tensor veli palatini muscles) in the dog. The fibrillar classification was based on using histochemistry and immunohistochemistry methods: myofibrillar adenosine thriphosphatase (mATPase) to different pH of pre-incubation; nicotine adenine dinucleotide (reduced) tetrazolium reductase (NADH-TR) and finally, application of specific monoclonal antibodies against myosin heavy chain isoforms I, IIa and IIx. In the palatinus and levator veli palatini muscles, pure type I fibres and the hybrid type IIax and IIc were shown, with a checkerboard distribution in the first and a clear predominance of hybrid fibre types (about 98% of the total population) in levator veli palatini muscle. On the other hand, in the tensor veli palatini muscle, type IIx and IIm fibres were identified (fast-twitch fibres related to fast-moving muscles and the powerful jaw muscles of carnivores). The tensor veli palatini muscle had a different distribution and fibrillar composition with predominantly type IIm fibres in its central zone, whilst the peripheral zone was primarily type I and IIx fibres.
ISSN: 0340-2096
DOI: 10.1111/ahe.12048
Source: Journal of Veterinary Medicine Series C: Anatomia Histologia Embryologia[ISSN 0340-2096],v. 43, p. 56-63 (Febrero 2014)
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