nerve between superior pharyngeal constrictor and middle

The facial nerve could also be classified as both sensory (taste for anterior two thirds of tongue) and motor, in which case the word in this part of the rhyme would change to “brother.” It is usually classified as a motor nerve. It controls tongue movement, innervating both the intrinsic and extrinsic tongue muscles. It also sends some motor messages to the uvula and the levator veli palatine (raises the velum).Īnother motor nerve that originates in the medulla. It innervates the trapezius and sternocleidomastoid muscles of the neck. The vagus also innervates the glossopalatine and levator veli palatine muscles, making it primarily responsible for palatal functioning.Ī motor nerve that originates in the medulla. Its recurrent branch innervates all of the other intrinsic laryngeal musculature. The superior branch of the vagus innervates the cricothyroid muscle and so is involved in pitch changes. Another motor nucleus sends motor commands to the pharyngeal constrictor muscles and completely controls the intrinsic musculature of the larynx. One of the motor nuclei of the vagus innervates the majority of the viscera, including the heart, respiratory system, and digestive system. This mixed nerve originates in the medulla. Input from both the cerebral cortex and the cerebellum is responsible for the coordination and timing of the motor movements involved in swallowingĬN X is the vagus nerve. It provides the feedback that is most important in the elicitation of the swallow.įeedback from motor movements, especially tongue movements which are mediated by the hypoglossal nerve, also help to trigger the swallow. The glossopharyngeal nerve is responsible for taste in the posterior one third of the tongue and for tactile sensation to the posterior part of the oral cavity, including the velum, tonsils, and walls of the oropharynx. Its sensory aspect carries input from the posterior one third of the tongue, the velum, and the pharynx including the tonsils. Its motor aspect contributes to the action of the middle pharyngeal constrictor muscle and innervates the stylopharyngeus muscle. The facial nerve mediates taste in the anterior two thirds of the tongue.ĬN IX, or the glossopharyngeal nerve, is a mixed nerve. It also sends motor impulses to the rest of the ear if you can wiggle your ears this action is mediated by CN VII. Its motor nucleus which is located in the junction of the pons and medulla innervates all of the muscles of facial expression including those in the forehead, cheeks, and lips, as well as the stapedius muscle of the middle ear.

It mediates sensation from the head, jaw, face, some of the sinuses and tactile sensation from the anterior two thirds of the tongue. It provides motor innervation to the muscles that control the mandible (jaw), the tensor veli palatini muscle of the velum, and the tensor tympani muscle of the middle ear.

The Six Cranial Nerves Involved in Speech and Swallowing Six of them are involved in speech and swallowing, and are therefore very important to the speech, language pathologist. Some of them are motor, some are sensory and some are mixed nerves, containing both sensory and motor fibers. The cranial nerves innervate the muscles of the jaw, face, tongue, neck, pharynx, and larynx. Consultants in Dysphagia Evaluation and Management

Nerve between superior pharyngeal constrictor and middle