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. Restricted to Integrative Physiology majors only. Prereq., IPHY 3470. Same as IPHY 5440. Prerequisites: Restricted to Integrative Physiology majors only.