Facial nerve pathway

The facial nerve carries signals from the brain to muscles that control facial expressions, as well as conveying taste sensations from the front part of the tongue. It starts in the brainstem, travels through the skull via a complex bony passage called the facial canal, and exits near the ear. From there, it branches out to muscles in the face, allowing expressions like smiling or frowning. It also sends tiny sensory fibers to parts of the tongue and ear. Overall, the facial nerve is essential for both facial movements and certain taste sensations.