A morphological, morphometric and histochemical study of the oviduct in pregnant and non-pregnant females of the plain viscacha (Lagostomus maximus)

FLAMINI MA; BARBEITO CG; PORTIANSKY EL

ACTA ZOOLOGICA

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Londres; Año: 2012

0001-7272

he oviduct is a very thin organ with a very tortuous appearance. It is divided into threesegments: the infundibulum, the ampulla and the isthmus. Particularly, the oviduct ofthe viscacha lacks the intramural portion described in other species. The mucosa showslongitudinal pleats. The free edge of the infundibulum ends as small fimbriae that are ofvariable length and do not completely cover the ovary. The proportion of ciliated andsecretory epithelial cells varied both in relation to the segments of the oviduct analysedand to the physiological state (anoestrus, follicular phase, early pregnancy and latepregnancy). The glycocalix and the apical region of the superficial epithelial cells arePAS and alcian blue positive. The muscular layers vary in thickness in different regions.Some lectins as UEA-1 and DBA showed variations in the binding pattern during thedifferent physiologic stages analysed while RCA-1and WGA had a very stable pattern.