Final answer:
The three main anatomical parts of the uterus are the fundus, which is the top portion; the body or corpus, which is the central section; and the cervix, which is the narrow lower portion that connects to the vagina.
Step-by-step explanation:
The three main anatomical parts of the uterus are as follows: the fundus, the body (or corpus), and the cervix. The fundus is the portion of the uterus superior to the opening of the uterine tubes and is located at the top. The body of the uterus is the central section where a developing embryo usually implants and grows. Lastly, the cervix is the narrow, inferior portion of the uterus that projects into the vagina, and it plays important roles in both keeping the uterus closed during pregnancy and allowing for the passage of a baby or menstrual flow.