Jones & Bartlett Learning (JBL) Module 6 Practice Exam

Which structure serves as the passage through which menstrual blood exits the uterus?

Vagina Oviduct Cervix Uterus

Correct Answer:

Cervix

Explanation:

The key structure is the cervix, which acts as the gateway between the uterus and the vagina. Menstrual blood comes from the shedding lining inside the uterus and must pass through the uterine cavity into the cervical canal. From there it exits through the external opening of the cervix into the vagina and out of the body. The cervix has an internal opening (to the uterus) and an external opening (to the vagina), making it the direct passage that carries menstrual flow from the uterus. The other structures aren’t the passage through which the blood leaves the uterus: the oviducts are for egg transport, and the uterus is the site of shedding, while the vagina is the final channel for external exit.

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