Question

what are the functions of epithelial tissue​

Answer 1

Explanation:

Functions of epithelial cells include secretion, selective absorption, protection, transcellular transport, and sensing. Epithelial layers contain no blood vessels, so they must receive nourishment via diffusion of substances from the underlying connective tissue, through the basement membrane.

Answer 2

Answer:

1.PROTECTION -

the mucous membrane ( keratinised stratified squamous epithelium ) in oral cavity protects the underlying tissues from bacterial invasion and the varying temperature, pH .

2.EXCHANGE OF GASES AND IONS -

the thin simple squamous epithelium in alveoli of lungs allow exchange of CO2 and O2, the same endothelium (simple squamous epithelium) in capillaries allows exchange of nutrients

3, ABSORPTION-

The columnar epithelium in intestine helps in increasing the surface area of so that greater amount of molecules are absorbed

4. SECRETION-

the simple cuboidal epithelium in thyroid follicles secretes T3 T4