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Cranial Nerves
I-XII
| Term | Definition |
|---|---|
| I Olfactory; sensory | Olfaction |
| II Optic; sensory | Vision |
| III Oculomotor; voluntary motor | To superior rectus, medial rectus, inferior rectus, inferior oblique, levator palpebrae superioris |
| III Oculomotor; sensory | Proprioception |
| III Oculomotor; involuntary motor | Sphincter pupillae muscle of iris [constricts pupil], ciliary muscle for changing the shape of the lens |
| IV Trochlear; motor | To superior oblique |
| IV Trochlear; sensory | Proprioception |
| V voluntary motor | Trigeminal; muscles of mastication |
| V Trigeminal; sensory | Cutaneous receptors (touch, temperature, pain, etc) of face; also surface of eye, surface of tongue, lining of mouth, lining of nose, teeth and external ear; proprioception |
| VI Abducens; voluntary motor | To lateral rectus |
| VI Abducens;sensory | Proprioception |
| VII Facial; voluntary motor | Muscles of facial expression |
| VII Facial; involuntary motor | To lacrimal, nasal, submandibular, and sublingual glands |
| VII Facial; sensory | Taste, from the taste buds on the anterior 2/3 of the tongue; proprioception |
| VIII Vestibulocochlear; sensory | Hearing and equilibrium |
| IX Glossopharyngeal; voluntary motor | To pharynx (swallowing) |
| IX Glossopharyngeal; involuntary motor | To parotid (salivary) gland |
| IX Glossopharyngeal; sensory | Taste, from the taste buds on the posterior 1/3 of the tongue; proprioception |
| X Vagus; voluntary motor | To pharynx (swallowing) and larynx (phonation) |
| X Vagus; involuntary motor | Regulates contraction of smooth and cardiac muscle and gland secretion of the organs in the thorax and abdomen |
| X Vagus; sensory | From stretch and pain receptors in the walls of the organs in the thorax and abdomen; proprioception |
| XI Accessory; cranial motor (voluntary) portion | To pharynx (swallowing) and larynx (phonation) |
| XI Accessory; cranial sensory portion | Proprioception |
| XI Accessory; spinal motor (voluntary) portion | To trapezius and sternocleidomastoid |
| XI Accessory; spinal sensory portion | Proprioception |
| XII Hypoglossal; voluntary motor | To tongue muscles (swallowing and speech) |
| XII Hypoglossal; sensory motor | Proprioception |