三叉神经的感觉纤维伸向头、颈部的各个区城,如面部皮肤、鼻、咽腔的粘膜,但三叉神经的感觉纤维在中耳的分布还没有搞清,一般认为上咽由三叉神经的上颌骨支发出纤维分布,中咽属舌咽和舌神经的混合咽丛分布,下咽 The feeling of trigeminal nerve fibers toward the head and neck of the various districts of the city, such as facial skin, nose, pharynx mucosa, but the sensory fibers of the trigeminal nerve distribution in the middle ear has not yet figured out, generally believed that pharyngeal trigeminal nerve Of the maxillary branch of the distribution of fibers, the pharyngeal tongue and tongue nerve glossopharyngeal mixed pharyngeal plexus distribution, swallow