Localize the Lesion

Question 1

Absent reflexes, fasciculations, muscular atrophy (Where is the lesion?)

Answer 1

Lower motor neuron

Question 2

Hyperreflexia, muscular rigidity (Where is the lesion?)

Answer 2

Upper motor neuron

Question 3

Emotional lability, personality changes, apathy, inattention, disinhibition (Where is the lesion?)

Answer 3

Frontal lobes

Question 4

Expressive aphasia (Where is the lesion?)

Answer 4

Broca’s area (dominant frontal lobe)

Question 5

Receptive aphasia (Where is the lesion?)

Answer 5

Wernicke’s area (dominant temporal/ parietal lobe)

Question 6

Inability to repeat with intact speech and comprehension (Where is the lesion?)

Answer 6

Arcuate fasciculus

Question 7

Decreased memory, hyperaggression, hypersexuality (Where is the lesion?)

Answer 7

Temporal lobes (amygdala)

Question 8

Anomia, alexia, agraphia, acalculia (Where is the lesion?)

Answer 8

Dominant parietal lobe

Question 9

Hemineglect (ignoring one side of the body) (Where is the lesion?)

Answer 9

Nondominant parietal lobe

Question 10

Visual hallucinations (Where is the lesion?)

Answer 10

Occipital lobes

Question 11

Cranial nerve III, IV dysfunction (Where is the lesion?)

Answer 11

Midbrain

Question 12

Cranial nerve V, VI, VII, VIII dysfunction (Where is the lesion?)

Answer 12

Pons

Question 13

Cranial nerve IX, X, XI, XII dysfunction (Where is the lesion?)

Answer 13

Medulla

Question 14

Ataxia, dysarthria, nystagmus, dysmetria, intention tremor (Where is the lesion?)

Answer 14

Cerebellum

Question 15

Protruding tongue deviating to the right side (Where is the lesion?)

Answer 15

CN XII (hypoglossal nerve) on the right side

Question 16

Deafness, tinnitus, and/or vertigo (Where is the lesion?)

Answer 16

CN VIII (vestibulocochlear nerve)

Question 17

Anosmia (inability to smell) (Where is the lesion?)

Answer 17

CN I (olfactory nerve)

Question 18

Absent corneal reflex (Where is the lesion?)

Answer 18

CN V (trigeminal nerve)

Question 19

Absent gag reflex (Where is the lesion?)

Answer 19

CN IX (glossopharyngeal nerve) or CN X (vagus nerve)

Question 20

Difficulty turning head to the left (Where is the lesion?)

Answer 20

CN XI (spinal accessory nerve) on the left

Question 21

Dilated and nonreactive pupil (Where is the lesion?)

Answer 21

CN III (oculomotor nerve)

Question 22

Loss of taste in the anterior two-thirds of the tongue (Where is the lesion?)

Answer 22

CN VII (facial nerve)

Question 23

Loss of taste in the posterior one-third of the tongue (Where is the lesion?)

Answer 23

CN IX (glossopharyngeal nerve)

Question 24

Right shoulder droop (Where is the lesion?)

Answer 24

CN XI (spinal accessory nerve) on the right

Question 25

Unilateral shooting pains in the face (tic doulorueux) (Where is the lesion?)

Answer 25

CN V (trigeminal nerve)

Question 26

Hyperacusis (Where is the lesion?)

Answer 26

CN VII (facial nerve)

Question 27

Hoarseness (Where is the lesion?)

Answer 27

CN X (vagus nerve)

Question 28

Inability to close eyes (Where is the lesion?)

Answer 28

CN VII (facial nerve)