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
Identification features of oesophagus are all except 
Select and explain. 
A. Submucosal glands are present, B. Lined by Stratified ciliated columnar epithelium, C. Upper 1/3rd skeletal muscle; Middle 1/3rd mixed fibres and Lower 1/3rd smooth muscle fibres, D. Tunica adventitia is present
B: Lined by Stratified ciliated columnar epithelium
Answer: B: Lined by Stratified ciliated columnar epithelium 
Explanation: Oesophagus is lined by Stratified squamous non-keratinized epithelium.The oesophagus is covered by an adventitia until it pierces the diaphragm, after which it is covered by a serosa.Oesophagus and duodenum have submucosal glandsThe muscularis externa of the upper third of the oesophagus has mostly skeletal muscle, the middle third has both skeletal and smooth muscle, and the lowest third has only smooth muscle fibers.Reference: Krishna Garg Histology; 5th edition; Page no: 130