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Abstract
The present study tried to give a complete picture about the structure of accessory genital glands of mature one-humped camels allover the year. Glands of seventy-two mature healthy animals (5-7 years old) were collected from the Cairo slaughterhouse during one year, (6 samples each month).
The dissected glands were examined grossly and apparently normal were prepared to be studied microscopically by the light and electron microscope.
The prostate gland was found to be consisted of an external dorsal part and an internal part. The external one was a discoid body lying dorsal to the neck of urinary bladder while internal part was situated in the submucosa of the prostatic urethra.
During active season, the corpus prostate was enveloped by a thick fibromuscular capsule which sent septa, to divide the gland into lobules.
The parenchyma was organized to classify the gland as a compound tubuloalveolar. The alveoli and tubules were lined by high columnar cells and few basal ones. Myoepithelial cells were recorded around the adenomers. The acini appeared at different stages of secretory activity (synthesis, storage, secretion and exhaustion). Ultrastructurally, the acinar cells contained well developed rough endoplasmic reticulum (rER), numerous mitochondria and a variable number of secretory granules
The duct system began as central collecting sinuses lined by simple columnar secretory epithelium. The sinuses were drained by interlobular ducts. where they penetrated the prostatic urethra to open. The epithelium was changed gradually to transitional in the terminal part.
The pars interna occured in the submucosa of the prostatic urethra enveloped by a thick fibro-muscular band. Laterally the gland related to the muscle urethralis.
The branched tubuloalveolar parenchyma contained adenomers lined with simple cuboidal epithelium.
During the inactive season, the stroma of the prostate gland showed a marked proliferation of the fibromuscular tissue on the expense of the parenchymatous tissue. The latter became reduced in size and the adenomers became very small or even rudimentary and contained narrow lumina devoid of secretory materials. Marked reduction in the cytoplasmic organelles and total absence of the secretory granules was, also, pronounced.
The bulbourethral glands appeared as a paired organ lying dorsolateral to the terminal part of the pelvic urethra. Each gland was surrounded by a thick fibro-muscular capsule from which septa arised and divided the gland into lobules
The gland parenchyma was organized to form tubuloalveolar gland. Units at different stages of secretory activity could be recognized. The granules of the active cells appeared polyhedral, electron lucent and containing electron dense dots
The duct system was started by wide irregular collecting sinuses. The cells of both acini and the collecting sinuses showed a strong PAS and alcian blue reactions.
During the period of inactivity, the fibromuscular stroma was increased markedly and the parenchymal tissue reduced in the same extent.
The acini became greatly reduced in size and activity and the lining epithelial cells showed marked degenerative signs.
The central collecting sinus became narrower and irregular. Both the acinar and collecting sinus cells showed a moderate fuchsinophilia and alcianophilia.
The urethral glands were entirely located in the submucosa of the pelvic urethra from just behind the body of the prostate to the level of the urethral bulb. The glands were surrounded by a fibromuscular capsule. Lobulation of the gland due to the presence of several septa.
The parenchyma of the urethral gland consisted of tubuloalveolar units the adenomers were of two types. The two types were described and discussed. Ultrastructurally, the acinar cells contained numerous electron lucent secretory granules with central electron dense dots and, also, vacuolated lipoid materials
The duct system of the urethral glands began as large, irregular intralobular central collecting sinuses. The parenchymal cells showed a strong PAS reaction and moderate to weak reaction with alcian blue.
During the period of inactivity, a marked proliferation of fibrous connective tissue on expense to the parenchymatous tissue occurred.
The urethral gland parenchyma became rudimentary, collapsed and non functioning. Marked disruption of the most of the cytoplasmic organelles occured in addition to, total disappearance of the secretory granules
The ampulla ductus deferens measured about 18cm in length and consisted of mucosa, very thick sub mucosa occupied by numerous tubuloalveolar gland. The secretory acini of the submucosal gland were lined by columnar cells at different stages of secretory activity. Ultrastructurally, the cells contained oval basally situated euchromatic nuclei, in addition to, well-developed rough endoplasmic reticulum, numerous mitochondria and electron dense secretory granules.
The secretory acini opened into the lumen of the ampulla ductus deferens through small connecting duct lined by low columnar secretory cells
The ampula ductus deferens during the period of inactivity showed a marked reduction in the thickness of its wall because its content of submucosal glands became collapsed and fewer in number. Their epithelium was cuboidal cells and their nuclei were pyknotic. The fibrous tissue was extensively proliferated and more condensed around the parenchymatous elements.