Term
| Cranial Nerve I Olfactory |
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Definition
smell (olfactory bulbs)
special sense
goes directly to the cortex, bipasses the brainstem and thalamus |
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Term
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Definition
| receives sensory from retina, information sent directly to higher centers |
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Term
| Cranial Nerve III Oculomotor |
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Definition
| moves muscles of eye and eyelid(somatomotor) and lens and pupil (visceromotor) orgin in the midbrain |
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Term
| Cranial Nerve IV Trochlear |
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Definition
| moves the eyeball medially, origin in the midbrain |
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Term
| Cranial Nerve V Trigeminal |
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Definition
sensory from the face and the teeth
sensory
motor to muscles of mastication
origin in the pons |
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Term
| Cranial Nerve VI Abducens |
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Definition
lateral eye movement
motor
origin in the inferior pons |
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Term
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Definition
motor to the muscles of facial expression
taste from the anterior 2/3 of the tongue (special sense)
visceromotor to almost all glands of the head
origin
sensory from anterior two-thirds of tongue
motor from pons |
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Term
| Cranial Nerve VIII Vestibulocochlear |
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Definition
hearing and equilibrium (special sensory)
motor fibers that lead to cells of the cochlea that tune the sense of hearing
origin
sensory-cochlea, vestibule, and semicircular duct of inner ear
motor-pons |
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Term
| Cranial Nerve IX Glossophryngeal |
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Definition
both special sensation (taste) and general sensation from the posterior tongue
general sensation from the pharynx
salivary gland secretion (parotid gland, visceromotor)
sensation from the carotid body and sinus for monitoring blood pressure and O2 saturation (viscerosensory)
medulla oblongata origin for motor and termination for sensory |
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Term
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Definition
Innervates skeletal muscles of larynx, pharynx and palate
Innervates smooth muscle of thoracic and abdominal organs, and glands (visceromotor)
Carries sensation from the thoracic and abdominal cavities (viscerosensory)
medulla oblongata |
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Term
| Cranial Nerve XII Hypoglossal |
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Definition
motor to the skeletal muscles of the tongue
medulla oblongata |
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Term
| Cranial Nerve XI Spinal Accessory |
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Definition
| Originates in the spinal cord, innervates two muscles in the neck, sternocleidomastoid and trapezius |
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