This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Cell lining of small intestine ? 
Select and explain. 
A. Simple squamous, B. Stratified squamous, C. Simple columnar, D. Stratified columnar
C: Simple columnar
Answer: C: Simple columnar 
Explanation: Simple columnar epithelium : It is made up of tall columnar cells. Simple columnar cells may be :i) Simple columnar epithelium (without cilia and microvilli) : Lining of stomach, large intestine, collecting duct and cervical canal.ii) Columnar epithelium with striated border (regularly arranged microvilli) : Lining of small intestine.iii) Columnar epithelium with brush border (irregularly placed microvilli) : Lining of gall bladder.iv) Ciliated columnar epithelium (presence of cilia) : Lining of uterus, fallopion tube, eustachian tube, tympanic cavity and central canal of spinal cord and ventricles.