الفهرس 
Introduction and aim of the workOnly 14 pages are availabe for public view
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Abstract
In this study human embryos ranging in to full term were used. The prenatal human sublingual gland was histologically histochemically studied through sections stained by Haemntoxylin and Eosin, PAS, and Alcian blue It was observed that the gland starts its the 8th week as a branched column of cells starts its development at the 8th ranched column of cells which showed canalized week and differentiated into and intercalated ducts at 20 week lining epithelium of the duct segment in the interlobular, pseudo stratified interlobular, and flat in the intercalated It was observed that the secretary until the duct system. The primordial 12 weeks. They showed cavitations differentiated into mucous.