What opens into the top of the uterus?

• A. Ovaries
• B. Fallopian tubes
• C. Vas deferens
• D. Vagina

Answer: (B)

Think about how the uterus connects to the rest of the reproductive system. The structure that opens into the top part of the uterus is the fallopian tube. Each tube starts at the upper lateral corner of the uterus (the cornu) and extends toward the ovary, with fimbriae near the ovary helping catch the released egg. The inside of the uterus communicates with the fallopian tube at the tubal opening, allowing the egg to move into the uterine cavity and, in many cases, fertilization to occur in the tube. The ovaries release eggs but do not open into the uterine cavity. The vagina connects to the uterus via the cervix, at the lower end, not the top. The vas deferens is part of the male reproductive tract and has no connection to the uterus.