Final answer:
Epithelial tissue, also known as epithelium, lines the surfaces of the body and forms certain glands. It plays a role in both protection and sensation in the body.
Step-by-step explanation:
Epithelial tissue, also known as epithelium, lines the surfaces of the body and forms certain glands. While the main function of epithelial tissue is to protect and provide a barrier, it also plays a role in sensation and detection. The skin, which is made up of epithelial tissue, contains specialized sensory nerve structures that detect touch, surface temperature, and pain. These receptors help us sense our environment and react accordingly.