Arrector pili muscle: evidence of proximal attachment variant in terminal follicles of the scalp

Arrector pili muscle: evidence of proximal attachment variant in terminal follicles of the scalp

Autor Barcaui, C. B. Google Scholar
Pineiro-Maceira, J. Google Scholar
Alchorne, MMD Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Universidade Federal do Rio de Janeiro (UFRJ)
Resumo Background There is general agreement that the proximal attachment site of the arrector pill (AP) muscle, via elastic tendons, is the bulge region, where follicular stem cells are situated. A variant of this insertion, in which the AP muscle surrounds the follicle circumference, has been described in human facial vellus hair follicles.Objectives To investigate whether terminal hair follicles of the human scalp may also present this variant of proximal insertion of the AP muscle.Methods Histological and immunohistochemical methods were used.Results At the bulge level, bundles of the AP muscle were seen to encircle the entire hair follicle.Conclusions Terminal follicles of the human scalp may also present this variant of proximal insertion of the AP muscle.
Palavra-chave arrector pili muscle
proximal insertion
Idioma Inglês
Data de publicação 2002-04-01
Publicado em British Journal of Dermatology. Oxford: Blackwell Publishing Ltd, v. 146, n. 4, p. 657-658, 2002.
ISSN 0007-0963 (Sherpa/Romeo, fator de impacto)
Publicador Blackwell Publishing Ltd
Extensão 657-658
Fonte http://dx.doi.org/10.1046/j.1365-2133.2002.04541.x
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000176020300017
Endereço permanente http://repositorio.unifesp.br/handle/11600/26823

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