2019 RITE Discussion Manual

Question 1

Function of parasympathetic nervous system

Answer 1

Pupil constriction, bronchoconstriction, detrusor contraction, sphincter relaxation, penile erection

Question 2

Orbitofrontal syndrome

Answer 2

Socially inappropriate behaviors as well as poor impulse control with disinhibition.

Question 3

Lateral convexity syndrome

Answer 3

Dysexecutive symptoms

Question 4

Mesial frontal syndrome

Answer 4

Amotivation

Question 5

Localization: optic nerve dysfunction and ocular motility deficit

Answer 5

Orbital apex. Oculomotor, trochlear, abducens nerves all go through cavernous sinus and superior orbital fissure to orbital apex. Optic nerve leaves apex through optic canal and does not go to cavernous sinus

Question 6

Thalamic astasia

Answer 6

Aleet and awake patient who cannot stand and sometimes sit unassisted for several days after acute stroke. Varying degrees sensory loss. Fall backwards or opposite to lesion.

Question 7

Thalamic astasia

Answer 7

Aleet and awake patient who cannot stand and sometimes sit unassisted for several days after acute stroke. Varying degrees sensory loss. Fall backwards or opposite to lesion.

Question 8

Lesion: subthalamic nucleus

Answer 8

Hemiballismus

Question 9

Lesion: Putamen

Answer 9

Weakness and chorea

Question 10

Lesion: Vestibular nucleus

Answer 10

Nyatagmus, fall towards lesion

Question 11

Cortical regions for gait

Answer 11

Medial frontal region, paracentral lobule, supplementary motor cortex

Question 12

Innervation: biceps

Answer 12

Musculocutaneous nerve

Question 13

Innervation: pronator teres

Answer 13

Median nerve

Question 14

Innervation: brachioradialis

Answer 14

Radial nerve

Question 15

Innervation: supraspinatus

Answer 15

Suprascapular nerve

Question 16

Primary input and output nuclei foe basal ganglia

Answer 16

Input - caudate and putamen

Output - globus pallidus

Question 17

Dopaminergic fibers to putamen come from?

Answer 17

Substantia nigra

Question 18

Pupil sparing third nerve palsy

Answer 18

Ischemic third nerve palsy. Pupik is spared due to periphery of nerve where pupillomotor fibers course. PCom aneurysm will involve pupil as they compress nerve

Question 19

One and half syndrome

Answer 19

Ipsilateral eye has no horizontal eye movements. Contralateral eye can only abduct.

Combo of L INO and L abducens nerve palsy

Lesion must involve left MLF and L abducens nucleus