Gross Brain

Question 0

CN II

Answer 0

Optic

Question 1

CN I

Answer 1

Olfactory

Question 2

CN III

Answer 2

Oculomotor

Question 3

CN IV

Answer 3

Trochlear

Question 4

CN V

Answer 4

Trigeminal

Question 5

CN VI

Answer 5

Abducens

Question 6

CN VII

Answer 6

Facial

Question 7

CN VIII

Answer 7

Auditory (Vestibulocochlear)

Question 8

CN IX

Answer 8

Glossopharyngeal

Question 9

CN X

Answer 9

Vagus

Question 10

CN XI

Answer 10

Spinal Accessory

Question 11

CN XII

Answer 11

Hypoglossal

Question 12

Cerebrum and Diencephalon

Answer 12

Olfactory (I)

Optic (II)

Question 13

Olfactory

Answer 13

CN I

• smell
• lesion = reduced taste/smell

Question 14

Optic

Answer 14

CN II

• vision
• lesion = visual field defects; blindness

Question 15

Midbrain

Answer 15

Occulomotor (III)

Trochlear (IV)

Question 16

Occulomotor

Answer 16

CN III

• eye movement
• lesion = ptosis; lateral stabismus; dilated pupil; paralysis of eye; loss of accommodation

Question 17

Trochlear

Answer 17

CN IV

• EMERGES DORSALLY!!!
• eye movement
• lesion = diplopia; atrophy of superior oblique mm.

Question 18

Pons

Answer 18

Trigeminal (V)
Abducens (VI)
Facial (VII)
Vestibulocochlear (Auditory) (VIII)

Question 19

Trigeminal

Answer 19

CN V

• mastication; sensation from face
• lesion = loss of gen. sensation face/scalp

Question 20

Abducens

Answer 20

CN VI

• eye movement
• lesion = medial strabismus (cross-eye)

Question 21

Facial

Answer 21

CN VII

• facial muscles; taste; rostral tongue
• lesion = paralysis of face mm.

Question 22

Vestibulocochlear (Auditory)

Answer 22

CN VIII

• hearing and balance
• lesion = hearing loss; balance problems

Question 23

Medulla

Answer 23

Glossopharyngeal (IX)
Vagus (X)
Spinal Accessory (XI)
Hypoglossal (XII)

Question 24

Glossopharyngeal

Answer 24

CN IX - tongue; pharynx - lesion = loss of gag reflex; hoarseness; dysphagia (difficulty swallowing)

Question 25

Vagus

Answer 25

CN X - pharynx; larynx; heart; viscera - lesion = loss of gag reflex; hoarseness; dysphagia

Question 26

Spinal Accessory

Answer 26

CN XI - trapezius; sternoclydomastoid - lesion = weakness turning head contralaterally and shrugging ipsilateral shoulder

Question 27

Hypoglossal

Answer 27

CN XII - tongue muscles - lesion = deviation of tongue toward lesion

Question 28

Neumonic for sensory/motor function

Answer 28

Some Say Marry Money, But My Brother Says Big Brains Matter More

Question 29

I, II, VI | neumonic

Answer 29

1 nose - olfactory 2 eyes - optic 6 abs - abducens

Question 30

Neumonic for nerve names

Answer 30

O, O, O, To Touch And Feel A Girls Vagina And Hymen