The lower and narrow end of the uterus.
The neck of the uterus through which menstrual flow and the fetus pass; structure subject to tears during delivery of a fetus.
The neck of the womb or uterus, placed partly above and partly within the vagina.
The neck of the uterus; the lower part from the internal os outward to the external os. It is rounded and conical, and a portion protrudes into the vagina. It is about 1 in (2.5 cm) long and is penetrated by the cervical canal, through which the fetus and menstrual flow escape. It may be torn in childbirth, especially in a primigravida.
Often simply referred to as the cervix, it is the neck-like passage forming the lower end of the uterus.