This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
Lining epithelium of the uterine cavity is 
Select and explain. 
A. Simple squamous epithelium, B. Simple columnar epithelium, C. Stratified squamous epithelium, D. Ciliated columnar epithelium
B: Simple columnar epithelium
Answer: B: Simple columnar epithelium 
Explanation: The endometrium, or mucosal lining of the uterus, is composed of a simple columnar epithelium and a lamina propria. The epithelium is composed of nonciliated secretory columnar cells and ciliated cells, whereas the lamina propria houses simple branched tubular glands that extend as far as the myometrium.Ref: Textbook of histology; 4th edition; Chapter 20; Female Reproductive System