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Control of blood glucose
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Two hormones for controlling blood glucose levels?
Insulin
-produced by
beta
cells in
pancreas
-released when blood glucose levels are
high
Glucagen
-produced by
alpha
cells in the
pancreas
-released when blood glucose levels are
low
What happens When there is low blood glucose
Hypoglycaemia-
caused by too much
insulin
symptoms-
dizziness,
confusion,
sweating,
shaking
and
weakness
could lead to
death
What happens when there is high blood glucose?
Hyperglycemia
Symptoms- frequent
urination,
fatigue
and
blurred
vision
Can lead to
nerve
damage,
kidney
damage and
heart
dissease
What is blood glucose
The
concentration
of
glucose
in the
blood
system, the primary source for
energy
in cells
What happens when food is eaten?
-
carbohydrates
are converted into
glucose
causing increase in blood glucose
-the
pancreas
releases
insulin
to use the glucose as
energy
Describe how type 1 diabetes is controlled?
-insulin
injections
Rapid
action insulin- lowers blood sugar
fast
taken before
meals
Long
acting insulin-
steady
release of insulin over a
long
period of time
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