Cranial Nerves

Question 1

CN 1- Olfactory- SENSORY

Answer 1

• info to brain regarding smells

Question 2

CN 2- Optic-SENSORY

Answer 2

• info from eyes to brain

Question 3

CN 3 - Oculomoter-Motor-

Answer 3

Movements of eyes, also responsible for dilation (helps keep eyes open)

Question 4

CN 4- Trochlear-Motor

Answer 4

Motor- eye movements

Question 5

CN 5- Trigminal-Both

Answer 5

• Critical for SLP

- carries messages from face, teeth, sinuses, cerebral mineges, ear canal, and anterior 2/3rd of tongue

Question 6

CN 6- Abducens-Motor

Answer 6

Control eye muscles

Question 7

CN 7- Facial- Both

Answer 7

• control of facial muscles and eye closure, salivary glands, adds taste info to anterior 2/3rd of tongue
• processing sensory info. from external ear

Question 8

CN 8- Auditory– Sensory

Answer 8

• auditory and balance info from inner ear to brain stem

Question 9

CN 9 - Glossopharyngeal- Both

Answer 9

• control of lifting and widening pharynx

- sensory info from pharynx, internal and exterior ear

Question 10

CN 10- Vagus- Both

Answer 10

• control of muscles in larynx
• tension and position of vocal folds
• sensory info from pharynx and larynx, external ear

Question 11

Cn 11- Spinal Accessory Nerve- Motor

Answer 11

-important for head movement- swallowing

Question 12

Cn 12- Hypoglossal

Answer 12

motor only- control over tongue