BATCH 23 MEDICAL UST #دفعة الدكتور حسن العريفي

#تعديلات على الملخص انه عدد طبقات ureter هي 3 و لمن نشرح sertoil cells نكتب انه Has unique shape which has barriers called ( blood testicular barrier) That protectthe sperm in its immature stage from immunity and provide nutrition to them . أما التعديل الاخير انه Transtional epithelium of (UB) is the same of ureter in flow of bollus and in absence of bollus