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SPMM Neuroscience – Questions & Accurate Solutions
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SPMM Neuroscience – Questions & Accurate Solutions
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SPMM Neuroscience – Questions & Accurate SolutionsCerebral layers cell make up Right Ans - Layer 1: No major cell bodies,
dendrites and glial cells
Layer 2/3: Small pyramidal cells
Layer 4: Stellate and fusiform cells - local connections
Layer 5: Large pyramidal cells
Layer 6: Fusiform cells
Nominal aphasia brain lesions Right Ans - Diffuse brain damage or lesions
in the Angular gyrus (dominant temporoparietal lobe)
Mirror neurons are found in Right Ans - Inferior frontal and superior
parietal lobes
Betz cells Right Ans - Large pyramidal cells
Found in layer 5 of cerebrum
Hippocampus blood supply Right Ans - posterior cerebral artery
Purkinje cells Right Ans - Unique to the cerebellum
GABA-ergic inhibitory cells send projections to the cerebellar nuclei
Responsible for motor output of the cerebellum.
Electrical synapses found in Right Ans - Retina
Peak synaptogenesis Right Ans - 2 years
Blood supply of corpus collosum Right Ans - Extensive supply make
infarctions rare
Mostly; anterior cerebral artery and anterior communicating artery. Also
branched of PCA.
Ventromedial hypothalamus function Right Ans - Satiety centre
Ventrolateral hypothalamus function Right Ans - Hyperphagia
Internal capsule blood supply Right Ans - Various vessels arising from all
parts of circle of willis
, Affects of ECT on neurotransmitter systems Right Ans - Down regulation of
B-adrenergic receptors
This is seen in almost all forms of antidepressant therapy
Klein-Levin syndrome presentation Right Ans - Episodic condition affect
male adolescents only
Periods of hyperphagia and hypersomnolence
Elevated growth hormone levels during ____ stage of sleep Right Ans - Slow
wave sleep
Triphasic waves EEG Right Ans - hepatic encephalopathy
CJD EEG Right Ans - Periodic 1-2 Hz sharp / biphasic / triphasic waves
Normal waking EEG in early childhood Right Ans - Delta and theta
predominance
Normal EEG in infancy Right Ans - Less the 3.5Hz frequency
EEG changes with antipsychotic Right Ans - Slowing in beta-activity
Increased delta, theta and alpha activity
(less fast, more slow wave activity)
EEG changes in benzodiazpine use Right Ans - Increased diffuse beta
activity
Cortisol peaks at Right Ans - 6-7am
Effect of stimulants on sleep Right Ans - Reduce total sleep time by
reducing REM and slow wave sleep
Rebound REM activity occurs on cessation
Benzodiazepine sleep study changes Right Ans - Reduced latency and stage
1 sleep
Increased stage 2 sleep
Decreased REM and slow waves sleep
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