Fig. 3 in Morphological analysis of the oviduct, oviducal gland and isthmus of the blue shark Prionace glauca (Linnaeus, 1758) (Elasmobranchii: Carcharhiniformes)

Fig. 3. Micrographs of the Club zone of Prionace glauca. (A): transition from Club zone (C) with the oviduct (Ov). SEM. (B): three-dimensional aspects of the tubules secretory and the opening of these in the central lumen (L) between the projections (pr). SEM. (C): disposition of the tubules secretory; simple ciliated columnar lining epithelium (c); tubule lumen (tl) and connective tissue (ct). HE. (D): secretory tubule in biggest increase; presence of simple ciliated columnar lining epithelium (c) with glandular cells (gc). HE. Scale bars: 300 µm (A); 100 µm (B); 50 µm (C); 10 µm (D).