Demonstrations

Lung

Code Number :	11A10.15?
Disclaimer:	Reprinted by permission of Dick Berg, University of Maryland, for use on this website. The demonstrations contained and referenced herein are listed for the purposes of cataloging and describing physics demonstrations which should be conducted only under the direction of a trained instructional support professional or physicist. These demonstrations are not presented for the purpose of being conducted by persons unconnected to this Facility and/or persons not consulting with or being supervised by the recognized instructional support professional or physicist and his/her staff. The University is responsible only for those demonstrations carried out using its own equipment using established safety and scheduling policies, and bears no responsibility for those choosing to use this source material for their own purposes. All demonstrations described and contained herein are public domain, and can also be found in reference materials in libraries, bookstores, and electronic sources. Further information regarding legal liability in use of demonstrations and labs will be found on the web site Injuries in School/College Laboratories in USA. The University of Iowa Disclaimers: University of Iowa Disclaimer All Rights Reserved..
Condition :	Excellent
Principle :	Physiology
Area of Study :	Physiology, Biology
Equipment :	Lung Model, Edmund Scientific 30 inch balloons,
Procedure :	Place new balloons on the "esophagus". Secure the top plate/lungs in place on the "body cavity" with nylon thumb screws. Place a new "diaphragm" onto the bottom opening and then attach the legs. DO NOT stretch the diaphragm tightly, but rather leave it loose enough so that you can easily grab it in the middle. As you then pull down on the diaphragm, the lungs should inflate ( inhale ). As you push up on the diaphragm the lungs should deflate ( exhale ).

References

Gholamreza Shamsipour, "Simple Experiments for Teaching Air Pressure", TPT, Vol. 44, # 9, Dec. 2006, p. 576.

Ernie McFarland and Tom Kehn, "The Fantastic Physics Fun Show", TPT, # 8, Vol. 34, Nov. 1996, p. 512.

V. J. Menon, and D. C. Agrawal, "Physics of Quiet and Suffocative Breathing", AJP, Vol. 71, # 5, May 2003, p. 474.

Janice VanCleave's, "Activity: Lung Model", The Human Body for Every Kid, p. 138.

Christopher P. Jargodzki and Franklin Potter, "98. Open - Ended Toy Balloon", Mad About Physics

F-065: Bottle and Baggie, DICK and RAE Physics Demo Notebook.

Joey Green, "Balloon in a Bottle", The Mad Scientist Handbook, Vol.1, p. 7.

Mail Questions and Comments to: Dale Stille