Neuro

Question 1

What supplies majority of thalamus/

Answer 1

Posteriolateral branch of posterior cerebral artery (supplies thalamus except for anterior tip)

Question 2

Complex regional pain syndrome aka

Answer 2

reflex sympathetic dystrophy

Question 3

3 types of complex regional pain syndrome

Answer 3

algodystrophy, dystrophy without pain, and pain without dystrophy

Question 4

Meds to treat complex regional pain syndrome

Answer 4

Phenoxybenzamine hydrochloride- alpha blocker and clonidine- alpha 2 agnosist. NMDA antagnost, Neurotin (GABA analog). Nerve blocks- injected into dorsal root ganglion.

Question 5

how does clonidine work?

Answer 5

alpha 2 agnost- blocks NE release from neurons

Question 6

NMDA antagonist in tx of complex regional pain syndrome

Answer 6

blocks receptors for glutamate, so most neurons in spinal cord won’t be activated. (when glutamate binds to its receptors, activates neurons)

Question 7

Monro-Kellie Hypothesis

Answer 7

Intracranial volume= volume of CNS + volume of blood + volume of CSF + volume of lesion

Question 8

What CN comes off posterior brainstem?

Answer 8

IV. All others come off anterior brainstem

Question 9

What pathologies is hyperosmia linked to?

Answer 9

Migraines, temporal lobe seizures, or hallucinations

Question 10

Lesion in CN III would present with

Answer 10

Dilation of pupil, eye moves down and out, droopy eyelid, diplopia

Question 11

ICP value

Answer 11

Less than 200 mmH20 or less than 15 mmHg