Body Defenses Against Disease
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Complete catalog record
Synopsis: Examines the body’s natural internal defense system. The three lines of defense against infection: the skin and mucous membrane, the lymphatic system, and the circulatory system. Explains how the body becomes immune to certain diseases and describes methods which man can use to improve defenses against disease.
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Sources
- 16mm Filmography (legacy record) — title, year, length, catalog record
- 16mm Filmography editors — creator
Original permalink · Record added 2024-09-07 23:47:22