The nervous tissue is there to protect neurons, and to protect other nervous system organs of the nervous system. Such as the brain, spinal cord, and nerves. The nervous tissue is what makes up the nervous system. Without the nervous tissue then there would be no brain or spinal cord and nerves.
This doesn't really imply to the nervous system but i will give a short summary of this type of tissue. The muscle tissue focuses on tissue turning into strength. You use that strength in one place and it becomes stronger. Every animals has it, and every human.
The Epithelial tissue is a type of protection covering the eyes, lips and other things. But it protects everything that is exposed, like ears, hearts, lungs etc. Some tissues allow them to stretch and expand themselves. How ever this type of tissue doesn't really imply to the system I'm studying.
This type of tissue contains lots of water. It also connects bones, fat, and other things. The connective tissue can also stretch 1 or 2 and a half times its original size. It is also known to be kinda like elastic Again this isn't connected to my system so i won't include much.