What are functions of epithelial tissues?

cbse
structureofanimals

#1

(1) It protects the underlying tissues from mechanical and chemical injuries, dehydration and infection.
(2) It act as a selection barriers.
(3) It also forms glands that secrete secretions such as mucus, gastric juice and intestinal juice.
(4) Epithelium of uriniferous tubules, stomach and intestine is absorptive.