17-1 Chapter 17 Lecture Outline See PowerPoint Image Slides for all figures and tables pre-inserted into PowerPoint without notes. Copyright (c) The McGraw-Hill.
Necessary for integration of cell activities Mechanisms gap junctions pores in cell membrane allow signaling chemicals to move from cell to cell.
Hormone –chemical messenger secreted into bloodstream, stimulates response in another tissue or organ Target cells –have receptors for hormone Endocrine.
