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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Usually, their nuclei are round and situated at the middle part of the cell but, because of the shortness of the P cells, nuclei rest near the basement membrane. Eipdidimo samples, collected from the anatomical regions of the epididymides, were fixed in Bouin’s fluid, dehydrated and embedded in paraffin.
It is observed zone I or initial segment and zone II, both of them localized into the head. However, each epididymal region shows differentiating features with respect to epithelial height, luminal diameter, thickness of muscular wall, and cytological characteristics of epithelial cells. Maturation of spermatozoa in the rabbit. The basal B cells lie next to the basal lamina, histologiw do not reach the tubular lumen.
The last region Vis continuous to the vas deferens Fig. The histology of the rat epididymis. Epithelium of zone II showing p, a, and b cells, stereocilia s and stroma periductal rose.
Note the anatomical regions: The luminal diameter has average of Each zone can be readly distinguished on the basis of its own duct morphological characteristics.
A cells, with round to ovoid nuclei, are scarcely found, and B cells are similar to those of preceeding zones.
Epithelium of zone IV showing p and b cells. Zur Histotopik von Hydrolasen in Nebenhoden des Hundes. Some aspects of structure and function in the mammalian epididymis. On the regional histology of the ductus epididymis in the buffalo Bubalus bubalis. The epithelium decreases in height and, concomitantly there is an increase in luminal diameter and in muscle wall thickness.
Ultrastructural observations suggesting merocrine secretion in the initial segment of the mammalian epididymis. 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. Studies on the regional histology and cytochemistry of the ductus epididymis in stallions, rams and bulls. The P cells are observed in all the five zones, of the epididymal duct.
However, in this study the zone II is restricted to the head of the dog epididymidis exclusively. The adluminal stereocilia are long. Coexpression of different cytokeratins, vimentin and desmin in the rete testis and epididymis in the dog. Regional distribution of steroids in the dog epididymis. Histological observations of the reproductive organs of the male dog from birth to sexual maturity. New York, Raven Press, The epithelial lining of all histological zones in the dog epididymidis contains, mainly, three cell types: The tissues were observed in a Olympus BH-2 microscope.
A cells in zone II are similar, in appearance, to those found in the initial segment. Histochemical localization of carbonic anhydrase in the testis and epididymis of the boar.
Test Histologia aparato reprodutor epididimo
The structure and function of the epididymis. The luminal occurrence of many packets of spermatozoa is a typical feature of this zone.
The epithelial height of zone II is somewhat lower than those of zone I The mammalian epididymidis is an important segment of epididijo excurrent duct system of the testis, that performs a variety of functions. Thus, the middle segment of the dog epididymidis, or zone III, comprises the distal head and all the body.
This zone was characterized by irregular epithelium The third zone, or zone III, comprises epididimi distal head and all the body. The epithelium contained all the cell types noticed.
On the regional histology and cytochemistry of the epididymis in the rabbits. The structure of the epididymis, efferent ductules and ductus deferens in the guinea pig: The cell boundaries are indistinct, and a large number of long stereocilia projects from the apical cell surfaces to the lumen.
A light hlstologia study. Casilla D Temuco mdelsol ufro. Functional relationship of the mammalian testis and epididymis. Structure and function of the ductuli efferentes, ductus epididymidis and vas deferens in mammals.
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.
Regional histology of the epididymis of the dog. The epididymis in the dog, reveals five distinct and continuous histological zones in the duct. Along the five regions in dog epididymidis, are epidieimo columnar cells and basal cells. Regional histology and fine structure of the epididymal duct in the golden hamster Ihstologia auratus. The fourth and fifth zones zones IV and Vare restricted to the tail, localized into the proximal and distal Cauda epididymidis, respectively.
Morphology of the bovine epididymis.