1.   2. Greek- to excite Chemicals released in minute amount that can elicit specific response Not all hormones are released by glands (e.g. Hypothalamus) 3. Nerves communicate…

Cellular Communication Denise M. Green Denise Green The first cell communication to be discovered was between two mating types of yeast cells. Communication can occur through…

Chapter 17 The Endocrine System Patterns and Processes of Life Figure 17.2 Membrane receptors facilitate the coordination of gene expression and key developmental events.…

Ch. 45: Chemical Signaling in Animals Introduction to Regulatory Systems Hormone: A chemical signal that is secreted into body fluids; communicate regulatory messages. Target…

Chapter 45 Chemical Signals in Animals Hormones are chemical signals. The endocrine system consists of: Endocrine cells which are hormone-secreting cells and Endocrine glands…

Chapter 45 ~Hormones and the Endocrine System Endocrine and Nervous System Regulation Nervous system Electrical signals Fast acting for immediate response Endocrine system…

Cellular Communication Denise M. Green Denise Green The first cell communication to be discovered was between two mating types of yeast cells. Communication can occur through…