Brain stuff Flashcards
Where do you find Adrenergic neurons?
Locus coeruleus
Where do you find Dopaminergic neurons?
SNc and VTA
Where do you find Serotonergic neurons?
Dorsal raphe
Where do you find Cholinergic neurons?
nucleus basalis, septum, PPTN
How do you image oligodendrocytes?
Luxol Fast Blue
What does oligodendroglioma look like on histology?
fried egg appearance
- have hx of seizures and calcifications
What do red dead neurons signal in CNS?
hypoxia or ischemia
Where does laminar/pseudolaminar necrosis happen?
Layers 3,5,6
How long after an infarct does neovascularization take place?
7-14 days
What kind of infarct do emboli usually cause?
hemorrhagic
How long is a transient ischemic attack?
1 hour
Middle cerebral artery infarct
face and arm more affected
- shows aphasia and neglect
Anterior cerebral artery infarct
leg more affected
- shows abulia
What is the FDA treatment window for tPA?
3 hours
Most common cause of intracerebral hemorrhage
hypertension and amyloid angiopathy (elderly)
What does the starfish sign signal?
blood in the subarachnoid space
What five things does the Mental status exam assess?
Language Memory Visual spatial executive function personality and mood
What does bilateral papilledema signal?
increased ICP
What term is used to describe when normal and nonpainful stimuli become painful?
Sensitization
Referred pain is completed through what phenomenon?
convergence of sensory input into a single spinal pain transmission
What makes up the pain modulation network?
hypothalamus-midbrain-medulla onto 2nd order STT neuron
