Nerves

Question 1

medial ankle paresthesias which radiate into the arch of his foot.

Answer 1

saphenous nerve - L4 root

Question 2

sensory contribution to the medial thigh, superior to the knee

Answer 2

obturator nerve

Question 3

sensory branches to the skin of the anterolateral lower leg and dorsum of the foot

Answer 3

superficial peroneal nerve - L4-S1

Question 4

sensory innervation to the posterolateral lower leg, lateral ankle and lateral foot.

Answer 4

sural nerve - S1-S2

Question 5

foot drop, in which the patient complains of a limp, tripping over the foot as they ambulate

Answer 5

common peroneal nerve

Question 6

Loss of patellar reflex

Answer 6

femoral nerve

Question 7

Loss of achilles reflex

Answer 7

Tibial nerve

Question 8

Loss of foot eversion

Answer 8

superficial peroneal

Question 9

Loss of dorsiflexion and toe extension

Answer 9

deep peroneal

Question 10

Loss of plantar flexion and ankle inversion

Answer 10

posterior tibial nerve

Question 11

hamstring and ankle weakness, an absent ankle reflex and numbness on the posterolateral leg (laterally from hip to foot)

Answer 11

Sciatic nerve

Question 12

Cranial nerve III palsy

Answer 12

Subarachnoid hemorrhage

Question 13

increased intracranial pressure due to compression of the fourth ventricle (lethargy, nausea, vomiting)

Answer 13

Cerebellar hemmorrhage

Question 14

contralateral palsy

Answer 14

Frontal lobe hemmorrhage

Question 15

Wernicke’s aphasia (receptive aphasia) where the patient speaks clearly but has trouble understanding.

Answer 15

Temporal lobe hemorrhage

Question 16

contralateral hemisensory loss with CT enhancement in the brain parenchyma

Answer 16

thalamic hemorrhage

Question 17

rapid progression of hemiplegia, nausea, vomiting and headache over 30 minutes, which is quickly followed by ipsilateral deviation of the eyes, stupor, coma and mydriatic pupils (“blown-pupil”, associated with brainstem compression and oculomotor nerve palsy)

Answer 17

putamen hemorrhage

Question 18

characterized by total paralysis, rapid coma, decerebrate rigidity (abnormal posturing marked by shoulder adduction, elbow extension, wrist pronation and flexion, digit flexion, leg extension and plantarflexion) and small (miotic), not mydriatic, reactive pupils.

Answer 18

Pontine hemorrhages

Question 19

Alcoholic whom slept on hand with wrist drop

Answer 19

Radial nerve palsy (superficial branch of radial nerve)

Question 20

V2 and V3 nerve distribution

Answer 20

Trigeminal neuralgia

Question 21

Spinal cord ends at…

Answer 21

L1-L2

Question 22

Pregnant, obese, and people who bend over a lot with decreased light touch and pinprick sensation in area around front pants pocket

Answer 22

Lateral femoral cutaneous nerve

Question 23

Spasticity

Answer 23

Upper motor neuron

Question 24

Biceps reflex

Answer 24

C5/C6

Question 25

Triceps reflex

Answer 25

C7

Question 26

patellar reflex

Answer 26

L4

Question 27

Achilles reflex

Answer 27

S1