Buccinator muscle the cheek area, which aids in holding the cheek to the teeth during chewing. This action causes the muscle to keep food pushed back on the occlusal surface of the posterior teeth, as when a person chews. By keeping the food in the correct position when chewing, the buccinator assists the muscles of mastication. It aids whistling and smiling, and in neonates it is used to suckle. In the past the buccinator muscle was also written as bucinator muscle. A "bucinator" in classical Latin is a trumpeter, or more precisely, the person who blows the "bucina". The name "bucina" could
Extensor indicis muscle the shared characteristics and embryonic origin. The extensor indicis extends the index finger, and by its continued action assists in extending (dorsiflexion) the wrist and the midcarpal joints. Because the index finger and little finger have separate extensors, these fingers can be moved more independently than the other fingers. Extensor indicis muscle In human anatomy, the extensor indicis [proprius] is a narrow, elongated skeletal muscle in the deep layer of the dorsal forearm, placed medial to, and parallel with, the extensor pollicis longus. Its tendon goes to the index finger, which it extends. It arises from the distal third of