ABSTRACT
Fig 4.9 Electron micrographs of Bufo arenarum oviduct showing the PC zone during the preovulatory period. A. Panoramic view of the epithelial layer. Secretory cells (SC) are interspersed with ciliated cells (arrows). Scale bar 4 jim. B. Glandular cells (GC) containing large granules of moderate electron density, several of them with prominent cores (arrows). Scale bar 2 jim. From Winik B.C. etal. 1999. Journal of Morphology 239: 61-73, Figs. 2, 19.
