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Homeostasis - Life Sciences Outreach Program

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Dueling Hormones<br />

What goes up, must come down!<br />

Insulin<br />

Produced by β-cells<br />

of the Pancreas<br />

Released into<br />

circulatory system<br />

when blood glucose is<br />

high<br />

Facilitates the<br />

transport of glucose<br />

into target cells<br />

<strong>Life</strong> <strong>Sciences</strong>-HHMI <strong>Outreach</strong>.<br />

Copyright 2009 President and Fellows<br />

of Harvard College.<br />

Glucagon<br />

Produced by α-cells<br />

of the pancreas<br />

Released into the<br />

circulatory system<br />

when blood glucose is<br />

low<br />

Signals the liver to<br />

break down glycogen<br />

into simple glucose

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