1. Nerves receive impulses from different parts of the body.
2. The afferent nerve produces an appropriate report of the stimulus.
3. Generates report instructions.
4. Prepared instructions reach different parts of the body.
5. preserves memories.
6. Controls thoughts, love, mental faculties, knowledge growth, illusion etc.
7. Creates emotional feelings.
8. Controls the contraction of various muscles and the secretion of glands.