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a&p - cranial nerves
specific functions of the 12 cranial nerves
| Term | Definition |
|---|---|
| olfactory | smell |
| optic | vision |
| oculomotor | eye movement via medial and later rectus and inferior oblique and superior rectus muscles; lid elevation via the levator muscle. pupil constriction; ciliary muscles |
| trochlear | eye movement via superior oblique muscles |
| trigeminal | sensation from skin to face and scalp and mucous membranes of the mouth and nose. muscles of mastication (chewing) |
| abducens | eye movement via lateral rectus movement |
| facial | pain and temperature from ear area; deep sensations from the face; taste from anterior 2/3 of tongue. muscles of the face and scalp. lacriminal, submandibular, and sublingual salivary glands |
| vestibulocochlear | hearing and equilibrium |
| glossopharyngeal | pain and temperature from ear; taste and sensation from posterior 1/3 of tongue and pharynx. skeletal muscles of the throat, parotid glands |
| vagus | pain & temp from ear; sensations from pharynx, larynx, thoracic, & abdominal visceral muscles of soft palate, larynx, & pharynx. thoracic & abdominal viscera; cells of secretory glands; cardiac & smooth muscle; innervation to the level of splenic flexure |
| accessory | skeletal muscles of the pharynx and larynx, and sternocladiomasteoid and trapezius muscles |
| hypoglossal | skeletal muscles of the tongue |