Cranial Nerves

Question 1

Distribution & Exit of Olfactory I

Answer 1

D - sensory for smell

E - cribriform plate

Question 2

Distribution & Exit of Optic II

Answer 2

D - sensory for sight

E - optica foramen

Question 3

Distribution & Exit of Occulomotor III

Answer 3

D - motor for eye muscles

E - superior orbital fissure

Question 4

Distribution & Exit of Trochlear IV

Answer 4

D - motor for eye muscles

E - superior orbital fissure

Question 5

Distribution & Exit of Trigeminal V

Answer 5

D - sensory for face, orbit, air sinuses, and oral cavity tissues inc. tongue.
D - motor for MOM, and tensor palati and tympani muscles
E - V1 SOF, V2 foramen rotundum, V3 foramen ovale

Question 6

Distribution & Exit of Abducent VI

Answer 6

D - motor for eye muscles

E - SOF

Question 7

Distribution & Exit of Facial VII

Answer 7

D - sensory for taste in anterior 2/3 of tongue
D - motor for muscles of facial expression
E - stylomastoid foramen

Question 8

Distribution & Exit of Vestibulocochlear VIII

Answer 8

D - sensory for hearing and balance

E - Internal auditary meatus

Question 9

Distribution & Exit of Glossopharyngeal IX

Answer 9

D - sensory for taste in posterior 1/3 of tongue
D - motor for muscles of pharynx and parotid gland
E - jugular foramen

Question 10

Distribution & Exit of Vagus X

Answer 10

D - sensory for tympanic membrane, lower pharynx and larynx
D - smooth muscles of respiratory system, alimentary canal organs and cardiac muscle
E - jugular foramen

Question 11

Distribution & Exit of Accessory XI

Answer 11

D - motor for neck muscles

E - jugular foramen

Question 12

Distribution & Exit of Hypoglossal XII

Answer 12

D - motor for tongue muscles

E - hypoglossal canal