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Flashcards in Neuro Deck (304)
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301

Protein 14-3-3

CSF protein helpful in diagnosing Cretuzfeldt-Jakob

302

Narcolepsy CSF findings?

Decreased hypocretin-1 (orexin-A) and hypocretin-2 (orexin-B)

303

Arachnoid granulations vs. choroid plexus?

Choroid plexi MAKE CSF. Arachnoid granulations ABSORB CSF. Communicating hydrocephalus 2/2 dysfunction of subarachnoid villi (e.g. meningeal infection or SAH)

304

Length constant vs. time constant?

Length constant = how far down an axon an AP can go. Time constant = how quickly it takes for a membrane to reset. Myelination increases length constant and decreases time constant.