Neuro/Psych 6 Flashcards Preview

ID/LC Step Review > Neuro/Psych 6 > Flashcards

Flashcards in Neuro/Psych 6 Deck (11):
1

Coenzymes required for branched-chain alpha-ketoacid dehydrogenase

- Thiamine pyrophosphate
- Lipoate
- Coenzyme A
- FAD
- NAD

Tender Loving Care For Nancy

... and her Maple syrup!

2

Maple syrup urine disease

- Defective breakdown of branched AAs (isoleucine, leucine, valine)
- Neurotoxicity

3

Treatment for MSUD

Dietary restriction of branched AAs

Also - sometimes high-dose thiamine treatment

4

Contralateral homonymous hemianopia w/ macular sparing

Occlusion of PCA

Usually h/o AFib

5

Cerebellar vermis

- Modulates axial/truncal posture/coordination
- Via medial descending motor systems

6

Acute lesions to the cerebellar vermis

- Truncal/gait ataxia
- Involvement of lower vermis and flocculonodular lobe also causes vertigo/nystagmus

7

Toxoplasmic encephalitis

- Associated w/HIV (lymphadenopathy, oral thrush)
- Seizures
- Multiple ring-enhancing CNS lesions

Extensive cat exposure is not essential for dx b/c it can be transmitted via contaminated foods

8

What's another name for nitric oxide (NO)?

Endothelium-derived relaxing factor (EDRF)

9

Pathway of NO/EDRF

- Activates guanylate cyclase
- then ^es intracellular cGMP
- cGMP activates a Ca pump => Ca efflux from cells => decrease in [Ca] => vascular wall SM relaxation

10

Which nerve runs along the orbital floor?

Infraorbital nerve

11

Damage to the infraorbital nerve causes what?

Paresthesia of the upper cheek, upper lip, and upper gingiva

Inferior rectus m. can be entrapped => limits superior gaze