The delicate interplay of hormones is responsible for all the events of reproduction. How many other body processes are controlled and cooordinated by these chemical messengers becomes apparent in this program, which follows the role hormones play in response to a sudden emergency: the ‘fight or flight’ reaction. (26 minutes)

Tell a Friend! Your Name: Your Email: Your Friend's Email: Your Message: We respect your privacy and will not use your friend's address without permission. Item#: BVL838 Copyright date: ©1984 DVD (Chaptered) ISBN 978-1-4213-7914-2

Part of the Series : The Living Body

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		Internal Defenses This program deals with events when the entire body is under attack-when bacteria or viruses invade the whole system. It shows the roles of the spleen, the lymphatic system, and the white blood cells, and explains the body's production of antibodies....(more details)		DVD (Chaptered) $99.95 DVD + 3-Year Streaming $149.93 3-Year Streaming $99.95
		The Nervous System: Nerves at Work This program looks at nerve signals and how they are transmitted. It looks at the part played by nerve messages in reflex activities and at both the chemical and electrical activities of networks of nerve cells in contact. (26 minutes)(more details)		DVD (Chaptered) $99.95 DVD + 3-Year Streaming $149.93 3-Year Streaming $99.95
		The Circulatory System: Two Hearts That Beat as One This program describes the structure and functioning of the heart. It analyzes the three basic components of the heart-muscle, valves, and pacemaker-and shows how each one contributes to the proper functioning of the organ as a whole. (26 minutes)(more details)		DVD (Chaptered) $99.95 DVD + 3-Year Streaming $149.93 3-Year Streaming $99.95
		The Urinary Tract: Water! This program shows the crucial part water plays in the body's functioning and the system for keeping it in balance. Drinking, sweating, and breathing are covered. The urinary tract is analyzed in detail, with particular attention to the functioning o...(more details)		DVD (Chaptered) $99.95 DVD + 3-Year Streaming $149.93 3-Year Streaming $99.95
		Breath of Life This program explains why the body needs regular supplies of air and how it gets them. The camera follows the process of breathing through the ultra-thin membrane of the lung into the blood, showing how the varying demand for oxygen is met by the exc...(more details)		DVD (Chaptered) $99.95 DVD + 3-Year Streaming $149.93 3-Year Streaming $99.95

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