Pls tell me the correct statement

Dear student

Option 3 is correct. only 2 statements are correct.

Statement 1 is true.
Olfactory Epithelium. Olfactory epithelium contains three cell types (basal cells, olfactory neurosensory cells, and sustentacular supporting cells), all of which are also part of the tumor.

Statement 2 is false.
The vaginal epithelium is the inner lining of the vagina consisting of multiple layers of (squamous) cells.The vagina is lined by non-keratinized stratified squamous epithelium.

Statement 3 is true.
The transitional epithelium is also called urothelium because it lines urinary ducts, such as renal calyces , ureters,  urethra  and urinary bladder.

Statement 4 is false.
Mast cells are  considered to be part of the immune system. They are able to release inflammatory mediators, such as histamine, proteases, chemotactic factors, cytokines and metabolites of arachidonic acid that act on the vasculature, smooth muscle, connective tissue, mucous glands and inflammatory cells.

Regards

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