MISSED NEURO/EYE Flashcards
(91 cards)
where is serotonin produced?
raphe nucleus
sysnthesis of GABA?
nucleus accumbens
lack o fGABA is implicated in the cause of
HD
what part of the brain plays a role in cognition, motivation, orgasm, and drug addiction?
Ventral tegmentum.
Principal site of norepinephrine production?
locus ceruleus
what would you see on CSF of MS?
oligoclonal IgG bands
when would you see increased opening pressure on lumbar puncure?
Hydrocephalus, Subarachnoid hemorrhage or infection like bacterial meningitis
High opening pressure, high protein, low glucose, very high WBC and mostly neutrophils, organisms on gram stain . What meningitis?
Bacterial Meningitis
Normal opening pressure, clear appearance, slightly high protein, normal glucose, high WBC, mostly lymphocytes. What meningitis?
Viral Meningitis
Normal to increased opening pressure, turbid or viscous appearance, very high protein, low glucose, very high WBC, mostly lymphocytes. Positive Ziehl-Neelsen stain. What meningitis?
Fungal/TB meningitis
Elevated Opening pressure, yellow to red blood stained appearance, high protein, normal glucose, normal WBC?
Subarachnoid Hemorrhage
oligoclonal bands, IgG, myelin basic protein
MS
myelin forming cells, CNS (brain + spinal cord)
Oligodendrocytes
where are oligodendrocytes derived from
neuroectoderm
Where is microglia derived from
mesoderm
Where are schwann cells derived from?
Neural crest
myelin forming cells, PNS
Schwann Cells
what glial cells form ROS
Microglia
What reflexes are absent in Conus medullaris?
Achilles S1
What reflexes are absent in cauda equina?
Patellar (L4) and Achilles (S1)
Distribution of cauda equina?
Unilateral
Distribution of conus medularis
bilateral
transverse myelitis think
conus medullaris
lumbar radiculopathy think
cauda equina