El nervio bucal es un nervio de la cara. Es una rama de la división mandibular del nervio trigémino. Proporciona sensibilidad a la piel de la mejilla, a la mucosa bucal y a los molares segundo y tercero. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Trayecto El nervio bucal se origina en el tronco anterior del nervio mandibular. Inicialmente, discurre entre las dos cabezas del músculo pterigoideo lateral, por debajo del tendón del músculo temporal. A continuación, el nervio bucal pasa por delante de la rama de la mandíbula y por debajo del músculo masetero. Surge del borde anterior del masetero y atraviesa el músculo buccinador. Se divide en varias ramas sensoriales que se dirigen hacia la mucosa bucal y los segundos y terceros molares. By TeachMeSeries Ltd (2026) Fig. 1: El nervio bucal emerge entre las dos cabezas del músculo pterigoideo lateral. Inervación sensorial El nervio bucal inerva sensorialmente: La piel de la mejilla. La mucosa bucal. Los molares segundos y terceros. Frequent questions What is the buccal nerve? The buccal nerve is a facial nerve branch that originates from the mandibular division of the trigeminal nerve. It primarily provides sensory innervation to the cheek skin, buccal mucosa, and the second and third molars. What does the buccal nerve innervate? The buccal nerve innervates the skin of the cheek, the mucosa of the mouth, and the second and third molars. This sensory function is crucial for the perception of touch and pain in these areas. Where does the buccal nerve originate? The buccal nerve arises from the anterior trunk of the mandibular nerve. It initially travels between the two heads of the lateral pterygoid muscle before continuing its course. What is the pathway of the buccal nerve? The buccal nerve runs beneath the tendon of the temporal muscle, then passes in front of the mandibular ramus and below the masseter muscle. It emerges from the anterior border of the masseter and penetrates the buccinator muscle. Why is the buccal nerve clinically significant? The buccal nerve is clinically significant due to its role in providing sensory information from the cheek and oral cavity. Damage to this nerve can result in altered sensation in these regions, affecting functions such as chewing and speaking. Rate This Article