Endometrial integrity primarily ensures what?

• A. The uterus can develop and sustain a pregnancy
• B. The placenta can detach early
• C. The cervix remains closed
• D. The ovaries release eggs

Answer: (A)

Endometrial integrity refers to the health and continuity of the uterine lining that lines the inside of the uterus and forms the site of implantation. A healthy endometrium thickens and becomes highly vascular under hormonal influence, creating a receptive surface for the embryo during implantation and a stable environment for subsequent placental development. When the endometrium is intact and functional, implantation can occur and the pregnancy can be maintained to term. If the endometrium is damaged or scarred, implantation may fail or pregnancy loss can occur due to poor decidualization or inadequate placental support. The other options involve different structures or processes: the cervix staying closed relates to cervical competence, ovulation concerns ovarian function, and early placental detachment is a placental issue not a direct function of endometrial integrity.