WYCC Channel 20 - Introducing Biology - "The Heart" (1978/1994)

Here's a complete lesson of Introducing Biology, as aired over WYCC Channel 20. Produced in 1978, and shown here as aired over WYCC Channel 20 in 1994. This episode deals with "The Heart," and is narrated by Bonnie Roohk of Golden West College and Lloyd Mason Smith of Orange Coast College.

Includes:

Station ID (voiceover by ??)

Notice on screen, reading as follows:

This program may not be broadcast after JUNE 30, 1983, without permission from Coast Community College District
(set in 28 line height Vidifont CBS News 36)

Opening titles, with nature shots and stills of Ms. Roohk and Mr. Smith at work in their research

Lesson begins with clips of people surfing on the water, playing indoor tennis and skateboarding, juxtaposed with an exposed beating heart. This leads to a brief look at other species including a chick embryo (whose heart beats several thousand times an hour), before going to the human heart which beats an average of 36 million times a year. Aristotle's description of the heart as "the center of intelligence" is contrasted with later research which showed no such correlation between heartbeat and intelligence, and a discovery of 17th-century English scientist William Harvey that the heart circulates the same blood around the body. This leads into a detailed description of the infrastructure of the heart ("two separate pumps in one") including atria, ventricles, the aorta and various arteries (including coronary), and how it all works; accompanied by pertinent illustrations, film clips, charts and microscopic looks at the various sections. A cross section of a lobster shell is shown to illustrate the process of the heart's motions, with dye inserted into the tissues, followed by a look into a rabbit's ear and the veins, arteries and capillaries inside. Illustrations of the connections show red (arteries coming out of the heart) and blue (veins going back in). An electronic pacemaker is shown to illustrate how we have built-in pacemakers, and an example of diastole (relaxation) is shown. Different artificial pacemakers are then demonstrated in cases where one's heart can't work on its own, as are artificial heart valves; film of surgery of installation of such equipment is shown, with pertinent description. The effects of smoking on the heart are looked into, as are narrowing of arteries that lead to angina, blood clotting (leasing to heart attacks, strokes if in the brain, or gangrene in extremities) and other problems. The lesson ends with film of blood flow through various arteries.

Carrol Ellerbe - Producer/Director
Bill O'Neill - Floor Director
Raymond DiZazzo - Writer
Tom Shannon - Graphic Artist
Susan Hansen - Film Research
Portions of film by - Heart Association, Churchill Films

Opening shot of "Campus Calendar" segment before tape cuts out

This aired on local Chicago TV likely sometime in 1994.

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