Neuroscience

Question 1

what part of the brain synthesizes NE

Answer 1

locus cereulus

Question 2

what is the precursor to 5HT

Answer 2

tryptophan

Question 3

where does COMT act

Answer 3

post synaptic membrane

Question 4

what is the precursor to DA

Answer 4

tyrosine

Question 5

What is the precursor to NE

Answer 5

dopamine

Question 6

What is the precursor to GABA

Answer 6

glutamate

Question 7

what part of the brain synthesizes 5HT

Answer 7

raphe nucelus (brainstem)

Question 8

what part of the brain synthesizes Da

Answer 8

substantia nigra

Question 9

name the GABA receptors

Answer 9

A, B and C

Question 10

what is a metabolite of 5HT

Answer 10

melatonin

Question 11

which neurotransmitter does not act centrally

Answer 11

adrenaline

Question 12

what is the purpose of the medulla oblongata

Answer 12

located in the brainstem and is responsible for basic life fnx (i.e breathing)

Question 13

which two NT are responsible for chorea in Huntington’s

Answer 13

decrease DA and GABA

Question 14

where is the subthalamic nuclei located

Answer 14

basal ganglia

Question 15

what are the two situations CT is better than MRI

Answer 15

1. acute bleed 2. calcification

Question 16

what is semantic memory

Answer 16

facts

Question 17

akinetic mutism is most commonly associated with which d/o

Answer 17

brainstem lesion

Question 18

which part of the brain does korsakoff effect

Answer 18

mammillary bodies and thalamus

Question 19

which gender has a bigger corpus callosum

Answer 19

F

Question 20

EEG finding in hepatic encephalopathy

Answer 20

triphasic waves

Question 21

Name the three areas of the frontal cortex and their associated impairment when damaged

Answer 21

1. orbitofrontal (disinibition) 2. medial frontal (apathy) 3. dorsolateral (exe dysfnx)

Question 22

what does sodium amytal do to sz threshold

Answer 22

increase it

Question 23

what is a lesion in the left parietal lobe called

Answer 23

Gertsmann syndrome

Question 24

what does an individual in left parietal lobe present with

Answer 24

aphasia, agnosia, acalculia, agraphia, and right left confusion

Question 25

what does fMRI measure

Answer 25

blood flow

Question 26

which type of dementia is primary progressive aphasia

Answer 26

FTD

Question 27

where should electrodes be placed for DBS of depression

Answer 27

subcallosal cingulate gyrus

Question 28

first deficit of PPA

Answer 28

anomia

Question 29

what percent of MCI convert to dementia every yr

Answer 29

12%

Question 30

prevalence of MCI in elderly

Answer 30

2-10% in over 65

Question 31

lesion in left frontal inferior region causes what impairment

Answer 31

inability to name (broca's located there)

Question 32

lesion in left perisilvian fissure causes what impairment

Answer 32

inability to comprehend (wernickes located there)

Question 33

which artery supplied the brain region responsible for sensation and language

Answer 33

MCA

Question 34

what is the difference bw DLPC and orbitofrontal cortex

Answer 34

DLPC does executive func and orbito more decision making based on reward.

Question 35

a lesion in which area leads to neglect

Answer 35

non-dominant parietal lobe

Question 36

pernicious anemia is deficiency in which vitamin

Answer 36

b12