Question

The epithelial tissue forms a barrier for which of the following:

• A. Mouth
• B. Lining of blood vessel
• C. Lungs
• D. All of the above

Answer 1

The correct option is D All of the above

• Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands.
• They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.

Hence, the correct option is D.