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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 |