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Cranial Nerves
12 Cranial Nerves (more then the basics)
8
Anatomy
Graduate
10/28/2007
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Cards

Term
Motor Nerves
 Definition
III, IV, VI, XI, XII
Term
Mixed Nerves
 Definition
V, VII, IX, X
Term
CN I
 Definition
Olfactory-smell
Sensory





Damage to this nerve impairs smell
Term
CN II
 Definition
Optic
Sensory




Damage causes blindess in the visual field
Term
CN III
 Definition
Oculomotor
Motor
turns eyeball up, down and medially
controls iris, lens and upper eyelid



Damage causes drooping eyelid dialted pupil, double vision difficulty focusing and inability to move eye in certain directions
Term
CN IV
 Definition
Trochlear
Motor
controls muscle that rotates the eyeball medially and slightly depresses the eyeball when head turns



Damage causes double vision and inability to rotate eye inferolaterally
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