CN VII, also known as the facial nerve, is a part of the human nervous system that controls various facial movements and expressions. There are different synonyms to describe this nerve, including the seventh cranial nerve, nervus facialis, and cranial nerve VII. It is responsible for controlling the muscles of the face, such as those responsible for raising the eyebrows, closing the eyes, and smiling, as well as glandular secretions like tears and saliva. This nerve also plays a role in taste sensation for the front two-thirds of the tongue. Damage to CN VII can cause loss of control of facial muscles, difficulty closing the eyes, and dry mouth.