paired female folded mucosa lacking tubular glands the remainder ... - PDF document

paired female folded mucosa lacking tubular glands the remainder capillary network. sections one finds the lining longitudinal or longitudinally oblique folds, often branch- ing. Although scattered mucous secreting cells, short, tubular glands open the bases the full The longitudinally oriented folds between mucous epithelium. folds dimin- one progresses posteriorly convoluted portion. Concomitantly, their depth increase their convoluted portion a uniform their bases enlarge end near bordering the duct form a spiral fashion with the portion. Many glands are orifices open liquely oriented the furrows the major glands open from the spiralling furrows. surrounding the the glands connective tissue secreting or cylindrical tube the gland broadens out. level where glands first appear, the the glands are relatively wide, the glandular the lumina Secretory cells products accumulate with seasonal growth, cells become pushed more more basally. cytoplasmic region cell becomes loaded is the es- in the the female as the through the typical section illustrates the appearance the glands secretory prod- Throughout most oviduct, all cells gland contain rior end notes a diminution progressive decrease which be- the apical cells (fig. clear basal rather than against the the cells. transition from all glands are full region which con- is that the majority only very although a minority loaded with secretory another abrupt which only the basal more apical cells little or nuclei. Successively more cells begin to secretory cells become progressively shallower lining remains The tunica the mucosal pars uterus is relatively thick son to the adult is smaller than that female with accumu- the end season. The sesses relatively undeveloped superior and but its portion possesses cells with secretory although granules are absent cells (fig. granules tend to be limited to When granules they usually cell toward the ear- liest evidence is a thickening the peritoneum male and fe- male tadpoles 7.5 long. Growth folded epithelial The epithelial and the both sexes, connective tissue oviduct be- comes convoluted (pars convoluta) through- out most convoluted only part, from the present report supplements describing histological ciliated, mucous secreting jelly-secreting epithelial cells apparent from this that the the pars and pars uterus, not characterized different types epithelial lining. secreting glands occur first few millimeters the anterior uterus. Cuboidal cells line anterior few the pars and the posterior dilatable portion pars uterus. There indeed three oviduct on a glandu- and anterior and characterized regions not cor- three regions several urodeles described according variation which correlate with the changes histochemical properties. reported regional the staining epithelial cells They described six regions, the six regions show toluidine blue These staining reactions sections with ribonuclease. Kambara the newt, first two regions show variable chromasia with toluidine blue. These regions secrete the major alpestris, ac- seven sectors. granules uniformly with the nucleus basally. These and are character. Finer granules contains granules Another urodele, atra, has segments (Vilter, contains a mature state, Alcian blue. sialic acid was not In contrast salamanders, the pipiens, shows no regional localiza- tion based mucous-secreting cells jelly-secreting cells the glands middle region There is jelly-secreting cells with respect Alcian blue toluidine blue, bromphenol blue disulfide groups method, a iron reaction, a reaction for the (Lee, '67) procedures suggest correlate with the three principal with portions oviduct or con- from the or sometimes them. Eggs sometimes pres- were removed the ostial present around were already eggs invested alone did cleaved normally. eggs in- into the were coated only with Katagiri; yet 85.2% cleavage may facilitate successful sperm tested jelly secretions from upper lower levels the fertilizing inhibits the fertilizing capacity from the upper physiological differences various levels present study for such E. Kemp respect to Freeman and Sialic acid the newt, cens. Biol. polysaccharide histochemistry the oviduct the newt, Triturus virickscens. Histochemical studies the newt, staining mate- epithelial cells oviducal eggs Lee, P. 1067 Studies frog oviducal the jelly-coats 1966 Histochemie ture du SOC. Biol., haute montagne. Compt. rend. PLATES adult fe- upper portion opening anteriorly middle, highly a lower, dilatable portion (egg inserted Upper non-jelly-secreting serosa. Mucous-secreting cells and the heavily ciliated from the middle, secretory tively shallow. secretory product. secretory region early stage nuclei which The gland lumen has been obliterated cells. Mucous ciliated epithelial into the OVIDUCAL HISTOLOGY OF RANA PIPIENS Peter A. Lee PLATE 1 499 the seasonal growth showing cells product, which includes fine intracellular gran- staining with are further a region female. Glands jelly-secreting region left contain from the pars uterus gravid female. through middle a differentiated oviduct. Centrally located slight accumulation OVIDUCAL HISTOLOGY OF RANA PIPIENS Peter A. Lee PLATE 2 501