To compare: Autocrine and paracrine signaling that occur through local hormones. Concept introduction: Local hormones are biologically active polypeptides that do not circulate within the blood. They are a large group of short-lived signaling molecules and are released by the cells. These hormones bind to either same cells or neighboring cells. They are activated and inactivated quickly.

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Chapter 17.3, Problem 9LO

Summary Introduction

To compare: Autocrine and paracrine signaling that occur through local hormones.

Concept introduction: Local hormones are biologically active polypeptides that do not circulate within the blood. They are a large group of short-lived signaling molecules and are released by the cells. These hormones bind to either same cells or neighboring cells. They are activated and inactivated quickly.

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