Introduces mammalian endocrine system. Course provides a thorough analysis of chemical communication by hormones and related bioregulators with emphasis on the major endrocrine systems such as the thyroid, gonad, pituitary and the brain. Prereqs: one year of general biology (lecture + lab) and one year of general chemistry (lecture + lab), IPHY 3470. Same as IPHY 5440. Prerequisites: Restricted to Integrative Physiology (IPHY) or Neuroscience (NRSC) majors only.