title: In vivo and in vitro sperm penetration in cervical mucus.
mesh_terms: D002470:Cell Survival; D002582:Cervix Mucus / Q000276:immunology / Q000502:physiology*; D005187:Fallopian Tubes / Q000502:physiology; D005260:Female; D005298:Fertility; D005836:Genitalia, Female / Q000502:physiology; D006801:Humans; D008297:Male; D008598:Menstruation; D013081:Sperm Motility; D013083:Sperm Transport; D013094:Spermatozoa / Q000502:physiology*; D014599:Uterus / Q000502:physiology