The Heart: how it works
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Shows the structure of the heart, and how it serves as a pump for the circulation of blood. Explains methods for testing and examining, showing the stethoscope, and analyses the sound cycles by which this instrument works. Concludes with some startling facts about the ordinary workload of the heart.
Sources
- 16mm Filmography (legacy record) — title, description, catalog record
Original permalink · Record added 2026-01-23 04:13:29