After an introductory segment contrasting the human endocrine and nervous systems, this program addresses the complex physiology of the endocrine system. Topics include the endocrine organs and glands; the characteristics of hormones and the process of signal transduction; hormonal regulation of blood glucose and blood calcium levels; the roles of growth hormone, thyroid hormone, testosterone, and estrogen in bodily development; hormones and reproduction; and hormonal involvement in the fight-or-flight response.

Encoded with permission for digital streaming by Films Media Group on Aug. 20, 2009.\\Part of the Films on Demand collection. Films on Demand is distributed by Films Media Group for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware.

Endocrine System: Introduction (0:52) -- Hormones and How They Work (2:20) -- Endocrine Organs (3:23) -- Blood Glucose Levels (2:21) -- Growth and Metabolism (2:43) -- Endocrine System: Reproduction (0:34) -- Endocrine System: Stress (1:53) -- Endocrine System: Mineral Balance (5:00).