Cranial nerves

Question 1

Cranial nerve I

Answer 1

Olfactory nerve
Sense of smell
Imparement: sense of smell/ loss of taste

Question 2

Cranial nerve II

Answer 2

Optic nerve
Vision
Imparement: blindness

Question 3

Cranial nerves III, IV, VI

Answer 3

Oculomotor, trochlear, abductees

Movement of eyelid, and eyeball, pupil constriction

Question 4

Cranial nerve V

Answer 4

Trigeminal nerve
Sensory- touch, temperature, pain on eyes, face, teeth. Controls chewing
Blinking in response to light touch on eyeball
Damage: loss in sensation of upper face, impaired chewing or sensation to jaw

Question 5

Cranial nerve VII

Answer 5

Facial nerve
Taste, facial expressions, tears and saliva
Damage: sagging face muscles distorted taste

Question 6

Cranial nerve VIII

Answer 6

Vestibulochochlear
Hearing and balance
Damage: deafness, dizziness, ability to walk in a straight line

Question 7

Cranial nerve IX

Answer 7

Glossalpharyngeal nerve
Toung movement, swallowing, gagging,
Damage: swallowing, choking, bitter or sour taste

Question 8

Cranial nerve X

Answer 8

Vagus nerve
Key role in heart, lung, digestive, urinary functions
Damage: loss of voice, impaired swallowing, fatal

Question 9

Cranial nerve XI

Answer 9

Spinal accessory nerve
Movement in head neck and shoulders
Damage loss of movement in head neck and shoulders

Question 10

Cranial nerve XII

Answer 10

Hypoglossial nerve
Controls younger movement
Damage: speech and swallowing, deviation of tongue to injured side