What are the three branches of the Trigeminal nerve?

The Trigeminal nerve, known as cranial nerve V, is the largest of the cranial nerves and is primarily responsible for sensation in the face as well as motor functions such as biting and chewing. It is divided into three major branches, which are essential for different regions of sensory innervation and motor functions.

The correct answer identifies the three branches: the Ophthalmic, Maxillary, and Mandibular nerves. The Ophthalmic branch transmits sensory information from the forehead, upper eyelid, and parts of the nose. The Maxillary branch conveys sensory information from the middle part of the face, including the lower eyelid, cheek, upper lip, and upper teeth. The Mandibular branch not only carries sensory information from the lower jaw and teeth but also contains motor fibers that control the muscles used for mastication.

Understanding these branches helps in both clinical and anatomical contexts, as they are involved in various reflexes and responses in the facial region.