Now it's important to recognize that the needs of
a cell or the reciprocal regulation of a cell
is not something that carries its way
all the way through the body. And a
really good example of this is what
I am getting ready to show you here.
This is known as the Cori Cycle.
The Cori Cycle plays a very important role in
helping us to maintain blood glucose
But it also shows us the needs of the different
parts of the body can be considerably different.
When the blood glucose is low, what does
the liver do? The liver puts glucose out
to maintain those levels. And the liver's role in
the body is maintaining levels whether
it's of sugars or it's of fatty acids.
The liver tries to maintain a stasis, as it were,
or a continual level of control.
When the blood glucose is high then
the body produces insulin and the cell
of the body are stimulated to
take up glucose from the blood
to reduce the concentration of glucose.