Final answer:
The inferior cylindrical end of the uterus is called the cervix, which connects the uterine cavity to the vagina and secretes mucus for reproductive functions.
Step-by-step explanation:
The term that refers to the inferior cylindrical end of the uterus is the cervix. The cervix is about 2.5 cm (1 in.) long, projects into the vagina, and plays a crucial role during pregnancy and childbirth. A canal runs the length of the cervix, which connects the uterine cavity with the lumen of the vagina, allowing for the passage of semen and the baby during birth. The cervix is also responsible for secreting mucus that can either work as a barrier to protect the uterus or facilitate the movement of sperm during ovulation. The uterus above the cervix is referred to as the body of the uterus, and the fundus is the section superior to the opening of the uterine tubes.