The Nervus Trigeminus, also known as the Trigeminal Nerve, is one of the most important nerves in the human body, responsible for transmitting sensory information from the face to the brain. There are several synonyms for the Nervus Trigeminus, including the Fifth Cranial Nerve, Trigeminal Cranial Nerve, and Cranial Nerve V. These terms are all used interchangeably to describe the same nerve. The term Trigeminal refers to the three branches of the nerve, which supply sensation to the forehead, cheek, and jaw. The Nervus Trigeminus plays a vital role in many essential functions such as biting and chewing, speaking, and even emotional expression.