Learn the twelve cranial nerves and their functions.
a data set by Bass
created November 11, 2016
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Learn cranial nerve functions.
Learning the cranial nerves and expected function allows for proper assessment of the cranial nervous system.
Choose the correct function for the given cranial nerve.
Learning the cranial nerves and their functions help aspiring health care professionals detect whether certain cranial nerves are functioning properly.
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|CN I - Olfactory nerve||Sensory; smell|
|CN II - Optic nerve||Sensory; vision|
|CN III - Oculomotor nerve||Motor: ciliary muscles, sphincter of pupil, all extrinsic muscles of eye except those listed for CN IV and VI.|
|IV - Trochlear nerve||Motor; superior oblique muscle of eye|
|V - Trigeminal nerve||Motor; muscles of mastication, the tensor tympani, tensor veli palatini, mylohyoid and the anterior belly of the digastric.|
|VI - Abducens nerve||Motor; lateral rectus muscle of eye|
|VII - Facial nerve||Motor; muscles of facial expressions, Special sensory taste fibers for the anterior 2/3 of the tongue|
|VIII - Vestibulocochlear nerve||Sensory; orientation, motion, and hearing|
|IX - Glossopharyngeal nerve||Sensory; tonsils, the pharynx, the middle ear and the posterior 1/3 of the tongue (taste) from the posterior one-third of the tongue. Motor; stylopharyngeus, parotid gland.|
|X - Vagus nerve||Motor; palate, pharynx, larynx, trachea, bronchial tree, heart, GI tract to left colic flexure. Sensory; pharynx, larynx, reflex sensory from tracheobronchial tree, lungs, heart, GI tract to left colic flexure|
|XI - Spinal Accessory nerve||Motor; sternocleidomastoid and trapezius|
|XII - Hypoglossal nerve||Motor; all intrinsic and extrinsic muscles of tongue (excluding palatoglossus-a palatine muscle)|