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
Intermediate filaments in epithelial cells is 
Select and explain. 
A. Keratin, B. Vimentin, C. Desnin, D. Lamin
A: Keratin
Answer: A: Keratin 
Explanation: Intermediate filaments are used as tumor markers Epithelial cells:keratin Muscle cells:desnin Nucleus:lamin Ref:Guyton and Hall textbook of medical physiology 12th edition,page number:8,9,14