Return to Resource Center Return to Graphics Gallery Return to Resource Center
Return to Graphics Gallery

Forms of Cell Signaling

   Copyright 2004 by Alberts, Bray, Johnson, Lewis, Raff, Roberts, Walter.
Garland Publishing: Taylor Francis Group.

Forms of Cell Signaling


Animal cells can signal to one another in various ways. (A) Hormones produced in endocrine glands are secreted into the bloodstream and are often distributed widely throughout the body. (B) Paracrine signals are released by cells into the extracellular fluid in their neighborhood and act locally. (C) Neuronal signals are transmitted along axons to remote target cells. (D) Cells that maintain an intimate membrane-to-membrane interface can engage in contact-dependent signaling. Many of the same types of signal molecules are used in endocrine, paracrine, and neuronal signaling. The crucial differences lie in the speed and selectivity with which the signals are delivered to their targets.  Fair Use and Copyright info

 
Graphics Gallery Visual Library Resource Center Forward to a Friend

 
Site Feedback   Ad Content Feedback   About AE   Copyright © Info   
Privacy Policy   Sitemap  Email this Link   Contact   Access Excellence Home
Custom Search on the AE Site

 

-Advertisement-