The endometrium of the uterus has two layers: the _____ is the functional layer, which cyclically grows thicker and develops a rich blood supply, then dies back. Farther from the lumen of the uterus is the _____, from which the functional layer grows.

3000+ review questions on anatomy and physiology. 

Anatomy refers to the internal and external structures of the body and their physical relationships, whereas physiology refers to the study of the functions of those structures.