Definition of couth. good or someone that is cool. In contrast to uncouth: bad or someone that is stupid.His ass is so couth!
Chapter 7 - Lower cranial nerve function. The lower cranial nerves are involved in pharyngeal and laryngeal function as well as in movements of the neck and tongue. Damage usually manifests as problems with speech and swallowing. These nerves arise from the medulla and, in the case of the accessory nerve (CN XI), the spinal cord. These nerves are commonly affected by conditions damaging the medulla, but bilateral damage to corticobulbar connections can create motor problems that affect tongue and pharynx movement and speech.
Chapter 9. The Cranial Nerves (including lower motor neurons involved in swallowing and speech) The cranial nerves innervate the muscles of the jaw, face, tongue, neck, pharynx, and larynx. Some of them are motor, some are sensory and some are mixed nerves, containing both sensory and motor fibers. Six of them are involved in speech and swallowing, and are therefore very important to the speech, language pathologist.