casing that protects the signal increases signal conduction
(MS, guillian barre) - ANS-myelin sheath
btwn capillaries and brain tissue
protects from harmful agents
only allow certain drugs in
change based on patient situation
(BBB becomes more permeable in inflammation thus allowing in more medication easily such as
abx) - ANS-blood brain barrier
4 ventricles fluid filled cavities
extends through the spinal cord
, produced by choroid plexus
circulates in the subarachnoid space
surrounds the brain, brainstem, spinal cord
cushions for the brain and SC
functions:
- protection
- nutrients
- remove waste
- measure to detect bacteria, protein
- meaure ICP - ANS-CSF
when too much pressure is exerted in a downward direction it causes brain herniation into the
brainstem - ANS-measuring ICP in the CSF
clear
colorless
no RBC
little to no protein - ANS-CSf should be...
glucose (+) fpr glucose - ANS-majot component of CSF
LOC
AxO x4 - ANS-most important assessment for neuro
push against resistance 5/5 = normal
hand grasps
foot presses - ANS-motor function CN assessment includes
light tough 2:1 discrimination
pain
temperature - ANS-sensory function assessment
faccidity - ANS-hypotonia
spasticity - ANS-hypertonia
spasm of muscles - ANS-myoclonus
impairment of muscle tone - ANS-dystonia
balance
coordination
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