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20 Cards in this Set
- Front
- Back
4 Things that can cause destruction of the BBB:
|
-Trauma
-Ischemia -Meningitis -Inflammation |
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5 results of BBB breakdown:
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-Seizures
-Hypertension -Hypercapnia -Cerebral vasodilation -Capillary distention |
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Major differences between CSF and plasma:
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CSF has much more Cl and H+
Plasma has much more protein and amino acids |
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2 types of Brain Edema:
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-Cytotoxic (intracellular)
-Vasogenic (extracellular) |
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Cytotoxic edema:
-Problem with what? -Result? |
Problem w/ Na/K ATPase
-Electrolytes in cell increase -Water accumulates in cells -Swelling injures cells |
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Vasogenic edema:
-Problem with what? -Result? |
Endothelial cells of capillaries - increased permeability; fluid accumulates along white matter tracts but leaves gray matter alone.
|
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Define edema:
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increases water in brain
|
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Define hydrocephalus:
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increased CSF pressure in brain
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What feeds the internal capsule?
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Anterior - lenticulostriates from MCA and ACA
Posterior - Anterior choroidal |
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How do spinal nerves exit the spinal column?
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Via intervertebral foramen
|
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2 types of motor nerves in the spinal cord:
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-alpha
-gamma |
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alpha neurons innervate
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extrafusal muscles
|
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gamma neurons innervate:
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intrafusal muscles
|
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nucleus where NE is produced:
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locus ceruleus
|
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nucleus where dopamine is produced:
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substantia nigra
|
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nucleus where serotonin is produced:
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dorsal raphe nucleus
|
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midbrain internal contents:
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-tectum
-Cerebral Peduncle containing: -tegmentum -cerebral aqueduct -crus cerebri -substantia nigra |
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Tegmentum composed of:
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-CN 3/4 nuclei
-Red nucleus -Reticular formation tracts that aren't crus cerebri |
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Type of axons on cooling receptors
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Adelta
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Type of axons on warming receptors
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C
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