CN Neuro Flashcards
Which CNs come from midbrain?
CN3: oculomtor
CN4: trochlear
Which CNs come from pons?
CN5: trigeminal
CN6: abducens
CN7: facial
CN8: vestibulotrochlear
Which CNs come from medulla?
CN9: glossopharyngeal
CN10: vagus
CN11: hypoglossal
CN12: accessory
Function and name: CN1
Olfactory - smell
Function and name: CN2
Optic
Vision
Function and name: CN3
Oculomotor
- pupil contstriction
- accomodation
- upper eyelid
- palsy: down and out, can’t adduct eye
Function and name: CN4
Trochlear
Eye movements
Palsy - up and in
Superior oblique muscle - responsible for depression and intorsion of eye
Function and name: CN5
Trigeminal
Sensory of face
Motor - muscles of mastication
Function and name: CN6
Abducens
Eye movements
Palsy - in and stuck - cannot abduct eye, eye turns medially when looking forward
Function and name: CN7
Facial
Facial muscles of expression
Taste anterior tongue
Plasy: INCLUDES forehead
Function and name: CN8
Vestibulotrochlear
Hearing and balance
Function and name: CN9
Glossopharyngeal
Sensation posterior tongue + pharynx, taste posterior tongue
Function and name: CN10
Vagus
ANS
Larynx, pharynx, vocal cords
Palsy: uvula deviates away (because soft palate in deviated side dose not rise)
Function and name: CN11
Hypoglossal
Movement of tongue
Palsy: tongue deviates toward affected side
Function and name: CN12
Accessory
Motor trap and SCM