[External os of the cervix; physiological rupture in natural childbirth].
D002584:Cervix Uteri; D005260:Female; D006801:Humans; D009321:Natural Childbirth; D007744:Obstetric Labor Complications; D011247:Pregnancy; D012421:Rupture; D014597:Uterine Rupture
CERVIX, UTERINE/rupture; LABOR/complications
Orificio externo do colo uterino; sua rutura fisiológica no parto natural.