Postnatal Differentiation and Regional Histological Variations in the Ductus Epididymidis of Rams
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Date
2012-05
Journal Title
Journal ISSN
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Publisher
TANUVAS, Chennai
Abstract
The caput, corpus and cauda regions of the ductus epididymidis consisted of six
histological segments that showed regional variations. The postnatal differentiation of the
different segments started from birth and progressed till maturity. The simple epithelium at
birth gained progressive pseudostratification. Similarly, the appearance of stereocilia,
different types of cells in the epithelium and the smooth muscle layers around the epididymal
tubules progressed and at different periods of postnatal development, the typical adult
characteristics were achieved. The diameter of the epididymal tubules also increased, as
age advanced. The developmental progression was disto-proximal i.e., the postnatal
differentiation started in the terminal segment and then ascended through the middle and
initial segments. The progression in the increase in height of the epithelium was varied in
the three regions, whereas the progression in the increase in the diameter of epididymal
tubules was uniform.
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Keywords
Veterinary Science, Veterinary Anatomy