Histogenesis of uterine body and horns of the one-humped camel (camelus dromedarius)‎

Abstract EN

The current study has been achieved to clarify the prenatal histological changes associated with the morphogenesis of the uterus of the dromedary camel with special reference to the morphological evidence of epithelio-mesenchymal interaction.

The developing uterus was differentiated into a corpus uterus (body) and two unequal horns at 135 mm CVRL stage.

During 210 - 300 mm CVRL stage, the uterine wall became differentiated into three sharply demarcated layers; an inner endometrium (mucosa-sub mucosa), middle myometrium (musculosa) and an outer perimetrium.

At 330 mm CVRL stage, the lining epithelium of the uterine body showed shallow invaginations in certain areas penetrating into the underlying stroma.

The endometrial undulations in the uterine horns appeared at 480 mm CVRL stage.

The lamina propria-submucosa became well-differentiated into two zones; a superficial, mainly cellular, narrow zone and a deeper, less cellular, wider one.

From 640 mm CVRL on, the endometrium was distinctly thrown into polymorphic folds of different size.

The primordia of the uterine glands were first observed in the uterine body at 640 mm CVRL stage and in the uterine horn at 870 mm.

They were in the form of solid cellular sprouts invaginating from the lining epithelium into the most superficial level of the propria-submucosa.

Pronounced coiling of the uterine adenomeres was noticed at the 1230 mm stage.