Tracings of Life

Duration: 14:42

Year Published: 1970s

Sound: sound

Description: Presented by Narco Biosystems, a Houston-based manufacturer of healthcare technology, this 1970s industrial film reviews technological advances in electronic recording equipment like the physiograph. Life scientists and doctors use physiographs to record functions like pulse, respiration, blood pressure, brain activity, heart activity, and more. Please note, the film includes scenes of medical procedures and animal testing that may be inappropriate or upsetting to some viewers.