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.
The path of the nerve starts in the hypoglossal nucleus of the brainstem, which is located near the midline of the medulla oblongata, and then travels between the carotid artery and jugular vein to end up on the underside of the tongue.If there are problems with the hypoglossal nerve, the tongue may become paralyzed.To test the nerveâs function, a patient would be asked to stick out their tongue. If paralysis were present, the tongue would point in the direction of the affected side.he hypoglossal nerve is the twelfth cranial nerve and controls movements of the tongue.