Cerebral blood flow is regulated by all of the following except:
ACalcium ions
BBlood pressure
CArterial PCO2
DPotassium ions
A patient presents with sudden onset vision loss and is diagnosed with occlusion of the posterior cerebral artery. Which part of the brain is most affected?
AFrontal lobe
BParietal lobe
CTemporal lobe
DOccipital lobe
The parvocellular pathway, from the lateral geniculate nucleus to the visual cortex, carries signals for the detection of
ALuminance contrast
BTemporal frequency
CMovement, depth and flicker
DColor vision, shape and fine details
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