Meibomian glands secrete which component of sweat?: (A) Water (aqueous), (B) Mucin, (C) Protein, (D) Lipid
Answer is D. Ans. is 'd' i.e., Lipid The major function of lacrimal apparatus is to secrete and drain the tear. Tear film consists of 3 layers :- Mucous or mucin layer (innermost):- Secreted by conjunctival goblet cells, crypts of Henle, glands of Manz. Aqueous layer (intermediate) :- This forms the bulk of the tear. It is secreted by main lacrimal and accessory lacrimal glands. Lipid layer (outermost) :- Secreted by the Meibomion Zeis, and Moll glands.