17-1 Endocrine System. 17-2 I. Introduction to endocrine system A. Classes of Chemical Messengers –1. Autocrine chemical messengers: released by cells.
17-1 Rod R. Seeley Idaho State University Trent D. Stephens Idaho State University Philip Tate Phoenix College Copyright © The McGraw-Hill Companies, Inc.
17-1 Anatomy and Physiology, Seventh Edition Rod R. Seeley Idaho State University Trent D. Stephens Idaho State University Philip Tate Phoenix College.
Endocrine System Lec (1)
