The pa of the internal lining of the uterus which is not shed during menstruation is the?

This question is phrased in a slightly tricky way, so it's impoant to break it down before looking at the answers. There are two things to think about here First, you need to decide if a structure is pa of the uterus. If it is pa of the uterus, then you need to decide if it is shed during menstruation. The correct answer will be a structure that is pa of the uterus but is not shed during menstruation. Answers about structures that are not shed during menstruation because they are not pa of the uterine wall are incorrect. The myometrium is our correct answer. It is the middle muscular component of the uterine wall and it is not shed during menstruation. The endometrium is the inner mucosal coat of the uterus. It is shed during menstruation and exhibits many characteristic changes during the menstrual cycle. The mesometrium is the mesentary of the uterus which forms the major pa of the broad ligament of the uterus. It is not even pa of the internal lining of the uterus, so it's not the answer to look for. Cervical mucosa lines the cervix, which is the inferior poion of the uterus. This mucosa is shed during menstruation. Ref: Cunningham F.G., Leveno K.J., Bloom S.L., Hauth J.C., Rouse D.J., Spong C.Y. (2010). Chapter 6. Paurition. In F.G. Cunningham, K.J. Leveno, S.L. Bloom, J.C. Hauth, D.J. Rouse, C.Y. Spong (Eds), Williams Obstetrics, 23e.