The document discusses different terms related to the nervous system including paresis, plegia, and stroke. Paresis means weakness, such as hemiparesis which is weakness on one side of the body often caused by a stroke. Plegia means paralysis, such as hemiplegia which is paralysis on one side of the body. A stroke is caused by a loss of blood supply to the brain resulting in brain tissue death. Both hemiparesis and hemiplegia can be caused by a stroke affecting one side of the body.

1. Chapter 12 Nervous System
By: Adam Arseneault
11/13/2013
Biology 120 - WW10
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2. -Paresis
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Means weakness
An easy nervous system
example would be
hemiparesis
Hemiparesis is the weakness
or loss of motion on one side
of the body, an example of
this would be generally after
a stroke
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3. -Plegia
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Means paralysis
Hemiplegia, would not only
keep us near our last example
but make that point even
more
Hemiplegia is the paralysis
on only one side of the body
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4. Stroke
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Development of an infarct
due to loss in the blood
supply to an area of the brain.
Both hemiparesis and
hemiplegia can be caused by
a stroke
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