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.
Nerve C6 controls movement in the wrists and C7 controls the triceps. Cervical nerve C8 works to control the hands. These functions are assisted through the branching of nerves from the brachial plexus to the regions they control.hese nerves in the neck form the phrenic nerve, which helps control the diaphragm and regulate breathing. Injury to the phrenic nerve can result in problems breathing and even death. Ad. Together, nerves C1-C4 work to complete the functions of the cervical plexus.