Historical observation of the cervix of coypus (Myocastor Coypus Bonariensis)

MASSON, P.G.; BIANCHI, C.P.; FELIPE, A.E.

Scientifur

INTERNATIONAL FUR ANIMAL SCIENTIFIC ASSOCIATION

Lugar: Tjele; Año: 2009 vol. 33 p. 55 - 58

0105-2403

The aim of the present study was to examine the histology of the cervix of coypu. Samples from mature sexually animals were used. Tissue was processed by routine histological techniques. The histological stains used were Mayer?s hematoxylin and eosin, Masson?s trichrome stain, PAS and picrosirius-red. The exocervical mucosa showed squamous stratified epithelium and the lamina propria consisted of dense irregular connective tissue. The zone of transformation was found to be covered by squamous stratified epithelium. Surface epithelium of the endocervical mucosa was stratified with a superficial layer of cylindrical cells with secretory aspect. The upper limit of the endocervical channels showed small folds. Positive PAS staining was observed in the luminal edge of the cylindrical cells of the surface epithelium. Additionally, Picrosirius-red staining was seen inside of the folds of the endocervical mucosa, showing the presence of collagen type I and II in the deep stroma