Skip to main content
Fig. 2 | BMC Zoology

Fig. 2

From: Microanatomy of the female reproductive system of the viviparous freshwater whipray Fluvitrygon signifer (Chondrichthyes: Myliobatiformes: Dasyatidae). II. The genital duct

Fig. 2

Histological structures of the oviducal glands of Fluvitrygon signifer. a Oviducal gland without glandular tubules of F7 female. b Oviducal gland of mature females with multiple glandular tubules (GT) organized in a centripetal manner around a central duct (CD); note extension of the glandular tubules into the muscularis (Mus), as indicated by black triangles. c Oviducal gland wall with numerous glandular tubules occupying almost the entire thickness of the mucosa. d Mucosa of the central duct composed of epithelial cells overlying a lamina propria (LP). e A glandular tubule showing protein compositions of secretory granules (Gr) in secretory cells (SC) and in the tubular lumen. Photomicrographs are indicated with corresponding specimen codes. Abbreviations: Ad, adventitia; BC, basal cell; CC, ciliated cell; Ep, epithelium; Lc, leukocyte; Mu, mucosa. Stains: a = H&E; b, c = modified Movat’s pentachrome; d = PAS-H; e = bromophenol blue

Back to article page

BMC Zoology

ISSN: 2056-3132

Contact us