14. The branch of medicine that deals with pregnancy, labor, and the postnatal period is known as

a. obstetrics
b. gynecology
c. OB/GYN
d. none of the above

15. The layer of uterine tissue that is rich in blood and changes in consistency during the menstrual cycle is the

a. endometrium
b. myometrium
c. perimetrium
d. none of the above

16. The layer of uterine tissue that produces powerful muscular contractions is the

a. endometrium
b. myometrium
c. perimetrium
d. none of the above

17. The layer of uterine tissue that attaches to ligaments that support and hold the uterus in place is the

a. endometrium
b. myometrium
c. perimetrium
d. none of the above

Obstetrics and gynecology (OB/GYN) specializes in women's reproductive health, while the uterus is comprised of the perimetrium, myometrium, and endometrium layers.

Explanation:

Obstetrics and gynecology (OB/GYN) is the branch of medicine that focuses on pregnancy, labor, and the postnatal period, providing care for women during these stages. The uterus consists of three layers: the perimetrium (serous membrane), the myometrium (smooth muscle responsible for contractions), and the endometrium (innermost layer that thickens during menstrual cycles).

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