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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A light microscope and histilogia study. The structure of the epididymis, efferent ductules and ductus deferens in the guinea pig: The muscular coat, surrounding the duct, almost does not vary in thickness The histology of the rat epididymis.

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New York, Raven Press, Despite such studies, stressing the importance of the morphofunctional knowledge of the dog epididymidis, little information is available on the regional histology of the duct ORSI, Studies on the regional histology and cytochemistry of the ductus epididymis in stallions, rams and bulls. Thus, the purpose of this study is to describe morphologically the regional histology of the ductus epididymidis in the dog, to provide a detailed structural baseline for specific studies of functional zonation in the epididymis of the dog, or, to comparate to other mammals.

The luminal diameter is It is observed zone I or initial segment and zone Uistologia, both of them localized into the head. The P cells are observed in all the five zones, of the epididymal duct.

The fourth and fifth zones zones IV and Vare restricted to the tail, localized into the proximal and distal Cauda epididymidis, respectively. They are tall cells, which extend from the basal lamina to the lumen.


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Fully exposed epididymis of the dog. Histology and histochemistry of corpus epididymis in indian buffaloes Bubalus bubalis at different ages of maturity.

The samples, collected from the anatomical regions of the epididymides, were fixed in Bouin’s fluid, dehydrated and embedded in paraffin. A cells, with round to ovoid nuclei, are scarcely found, and B cells are similar to those of preceeding zones. The epithelium contained the same three cell types, similar to other zones. Some features distinguished the epithelial lining of zone III.

Each zone can be readly distinguished on the basis of its own duct morphological characteristics. Zur Histotopik von Hydrolasen in Nebenhoden des Hundes. The basal B cells lie next to the basal lamina, and do not reach the tubular lumen. Casilla D Temuco mdelsol ufro.

Structure and function of the ductuli efferentes, ductus epididymidis and vas deferens in mammals. Regional histology of the epididymis of the dog. The luminal diameter has average of Histochemical localization of carbonic anhydrase in the testis and epididymis of the boar.

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The fourth and fifth zones zones IV and Vare restricted to the epididymal tail, localized into the proximal and distal Cauda epididymidis, respectively. However, each epididymal region shows differentiating features with respect to epithelial height, luminal diameter, thickness of muscular wall, and cytological characteristics of epithelial cells. Coexpression of different cytokeratins, vimentin and desmin in the rete testis and epididymis in the dog.

The B cells are characterized by presence of nuclei of different shapes. Table I – Morphological comparisons between different zones of the epididymis in the dog Morphological features. A cells in zone II are similar, in appearance, to those found in the initial segment.


Regional distribution of steroids in the dog epididymis. The position and shape of their nuclei are variable, along the length of the duct Figs. A light microscope study.

Regional differences in the morphology of the goat epididymis: Histological observations of the reproductive organs of the male dog from birth to sexual maturity. Two different types of columnar cells could be distinguished: Structure and function of the epithelium lining the ductuli efferentes; ductus epididymis and ductus deferens in the rat.

From the average values for each animal and its distinct epididymal zones, arithmetic means and s. Usually, their nuclei are round and histoloiga at the middle part of the cell but, because of the shortness of the P cells, nuclei rest near the basement membrane.

Histologia aparato reprodutor epididimo

Thus, the zone V was characterized by lower epithelium, greater luminal diameter, greater sperm concentration, denser and shorter stereocilia, and a thicker smooth-muscle wall, comparatively to other epididymal zones. The structure and function of the epididymis. 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.

Previously, ORSI et al.