Neuro (FA)

Question 1

site of synthesis of ACh seen in Alzheimers, Huntingon, Parkinson

Answer 1

basal nucleus of Meynert

Question 2

deCORticate posturing

Answer 2

lesion above the red nucleus, presents w/ flexion of UE and extension of LE

Question 3

decerebrate posturing

Answer 3

lesion AT or BELOW the red nucleus, presents with extension of UE and LE

Question 4

Sturge-Weber syndrome

Answer 4

neurocutaneous disorder

congenital, nonhereditary abnormality of neural crest derivatives, somatic mosaicism of activating mut in one copy of GNAQ

capillary vasc malformation (port wine)
ipsilat leptomeningeal angioma (seizures/epilepsy, ID)
episcleral hemangioma (inc IOP, early onset glaucoma)

Question 5

progressive multifocal leukoencephalopathy

Answer 5

demyelination of CNS due to destruction of oligodendrocytes (PARIETAL, OCCIPITAL)

sec to reactive of JC virus

visual sx common

inc risk w natalizumab