Definitions and mechanism (3 compo) Flashcards
what is hemorrhagic stroke
bleeding of the brain, weak broken blood vessels, blood accumulates and compresses the surrounding brain tissue
types of haemorrhagic stroke (2)
intracerebral (ICH) - bleeding in the cerebral cortex/within the brain tissue
subarachnoid (SAH) - bleeding into the sub arachnoid space
which type of stoke has the highest mortality rate
ischemic stroke
% of hamorrhagic and ischemic
15%; 85%
stroke management
stabilize vitals (BP, breathing, heart function, swallowing)
CT scan - location, type of stroke, Dx
blood thinner/ anti-platelet meds (aspirin) for ischemic
cranial surgery to remove piece of skull bone to allow blood, reduce pressure; to clip the point of rupture
define hemiplegia
partial weakness in the one side of the body, more severe than hemiparasis (complete weakness)
why does stroke affect one side of the body?
one side of the brain controls the opposite side of the body at medulla/brain stem
what is low tone
muscle weakness, floppy muscle.
afferent input:
increased threshold of spindle activation
reduced spindle activity level/sensitivity
efferent input:
disruption of the motor sensor of the brain, info can’t get down to the targeted muscle
is high or low tone more diasbiling?
low
which side of the brain control language and speech? what area its called?
L; broca’s motor speech area (frontal), wenickes speech centre (temporal)
frontal lobe functions
voluntary mvmt
broca’s area
temporal lobe functions
hearing and memory (hippocampus)
wernickes speech centre (understanding)
broca vs wernickes
the actually talking vs understanding (meaningless word)
parietal lobe function
sensory (pressure, touch, temp, pain, proprioception, spatial awareness)
occipital lobe function
vision
