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Video Video
TITLE: Life under pressure [videorecording] : the circulatory system.
SERIES: The living body
PUBLISHED: Princeton, NJ : Films for the Humanities & Sciences, Inc. ; 1991.
DESCRIPTION: 1 video cassette (26 min.) : sd., col. ; 1/2 in.
NOTES: Extra copy.
NOTES: This program the third of four on the circulatory system, follows the journey of a red blood cell around the circulatory system to demonstrate the efficiency and elegance of design that deliver oxygen and food to all parts of the body and remove wastes before they can do harm. It explains how the veins and arteries are structured to perform their tasks: muscular arteries to transmit the force of the heartbeat, veins with valves to ensure the blood's return to the heart.

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