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Healthy People
Blood glucose concentration varies.
For example:
After a meal After exercise
concentration of concentration of
glucose rises. glucose falls.…read more

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Healthy People
Insulin is released if blood glucose
concentration is too high
Glucagon is released if blood glucose
concentration is too low
Uses negative feedback to bring blood
glucose concentration back to normal.…read more

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Diabetes Mellitus
Body is unable to
control the blood
glucose
concentration
There's two types:
1. Type I Diabetes
2. Type II Diabetes…read more

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Type I Diabetes (Insulin-
Dependent Diabetes)
An auto-immune
disease- body attacks
and destroys the beta
cells (-cells) in the
islets of Langerhans.
Unable to produce
insulin, because -cells
are destroyed
Blood glucose
concentration is higher
than normal
Usually develops in
children and if there's a
close history of type I
diabetes in the family…read more

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Type II Diabetes (Non-insulin
Dependent Diabetes)
-cells don't produce
enough insulin or the
body doesn't respond
to insulin
Because the insulin
receptors found on the
surface of liver and
muscle cells lose the
ability to respond to
the insulin in the
blood.
Blood glucose
concentration is
higher than normal…read more

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