La histología regional del conducto del epidídimo en el perro comprende cinco regiones histológicamente distintas y continuas. Dos de las. Test Histologia aparato reprodutor epididimoenEpididimo Cual epitelio presenta el Epididimo?. Cuales fibras que rodean?. Cual epitélio. Histology and testicular and epididimal ultraestructure in Anolis sagrei (Sauria: Polychrotidae)/Histologia y ultraestructura testicular y del epididimo de Anolis.

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The physiology of reproduction. The epithelial height of zone II is somewhat lower than those of zone I The epididymis, in all the species studied, so far is known, present variabilities in structure and function along its length.

#epididimo medias

The zone V comprises the distal tail, and is characterized by lower epithelial lining, greater luminal diameter, shorter stereocilia, packed spermatozoa inside the tubular lumen, and a thicker smooth muscle wall, comparatively to the other histological zones in the dog epididymidis. Note the principal papical a and basal b cells, and the stroma periductal rose.

Previously, ORSI et al. A light microscope and ultrastructural study. The epididymis in the dog, reveals five distinct and continuous histological zones in the duct. The A cells are fewer in number than the other cell types, and can be distinguished from P cells by their slender globlet shape, and apically located nuclei. The muscular coat, surrounding the duct, almost does not vary in thickness Histochemical localization of carbonic anhydrase in the testis and epididymis of the boar.


A morphologic study of the ductus of the epididymis of Sus domesticus. Ultrastructural observations suggesting merocrine secretion in the initial segment of the mammalian epididymis. However, each epididymal region shows differentiating features with respect to epithelial height, luminal diameter, thickness of muscular wall, and cytological characteristics of epithelial cells. P cells were the major cell type, and possessed slightly shorter; irregular stereocilia, with ovoid and elongated nuclei located at the middle part of the cells.

Thus, the zone V was characterized by lower epithelium, greater luminal diameter, greater epodidimo concentration, denser and shorter stereocilia, and a thicker smooth-muscle wall, comparatively to other epididymal zones. The B cells are characterized by presence of nuclei of different shapes. histoloiga

Studies of the guinea pig epididymis. The luminal diameter is Functional relationship of hiwtologia mammalian testis and epididymis. These cells are arranged in a distinct layer, disposed immediately over the basal lamina.

Ultrastructure and quantitative morphology of the principal cells. P cells are also the most common epithelial cell type found in this zone. Histochemical localization of glycosidases in dog epididymis.

Stellate lumen stars of the ductal sections in the zone III. Thus, the middle segment of the dog epididymidis, or zone III, comprises the distal head and all the body. The rounded tubules, obtained from several sections of different epididymal regions, were measured for height of epithelium, diameter of lumen and thickness of muscle coat.


Structure and function of the epithelium lining the ductuli efferentes; ductus epididymis and ductus deferens in the rat. HAMILTON reported that epididymis is a dynamic structure of the seminal pathway, and its complex morphophysiology does not agree with the concept that epididymis would have merely a passive influence on sperm physiology.

Test Histologia aparato reprodutor epididimo

The stereocilia still are regular and shorter, forming a brush border. The zone III comprises the distal head and all the epididymal body. The last region Vis continuous to the vas epiddidimo Fig. Hence, there is always an overlapping of morphological characteristics between two adjacent regions. Ultrastructural differences in efferent ducts and several regions of the epididymis of the hamster. The tissues were observed in a Olympus BH-2 microscope.

Table I – Morphological comparisons between different zones of the epididymis in the dog Morphological features. The duct is surrounded by a smooth muscle layer of about