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: ENT
Vocal cord is lined by: 
Select and explain. 
A. Stratified columnar epithelium, B. Pseudociliated columnar epithelium, C. Stratified squamous epithelium, D. Cuboidal epithelium
C: Stratified squamous epithelium
Answer: C: Stratified squamous epithelium 
Explanation: Whole of larynx is lined by ciliated columnar epithelium except the vocal cords and upper pa of vestibule which is lined by stratified squamous epithelium. Mucous glands are distributed all over the larynx except the vocal cords, which is lubricated by mucus from glands within the saccule. The squamous epithelium of vocal fold is, therefore prone to desiccation if these glands cease to function as in radiotherapy.