The outermost portion of the uterus which is a containment valve in pregnancy, is a sperm duct conductor allowing the rise of sperm as increasing the rise of sperm, releasing aqueous cervical mucus during the fertile phase . [FertiClin: A Clinic Specializing in Infertility Treatment Marriage]. Where transpassamos when we do the embryo transport during Embryo Transfer in IVF method or transpassamos sperm trained in the method Insemination Artificial.[Adapted to the Site FertiCin: Fertility clinic Artificial, care with dedication and respect]..