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1A60.u2 - Surface Area of a Lung

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​1A60.u2 - Surface Area of a Lung

Title1A60.u2 - Surface Area of a Lung

To model the surface area of a single lung.

Assembly Instructions

Pull out the large plastic sheet with painted veins.  Grab 8 magnets to secure the sheet to the front blackboards of the lecture hall.  This sheet will span the whole 3 sets of boards.  Adhere it to the top of the top boards and lift them up so that it lifts the plastic sheet off of the floor. 

If this is being exported to another classroom, ask if a blackboard is available before supplying the magnets.  Be sure to emphasize not to rip the sheet (especially if it is exported).

Setup Time2
Operation Time10
Preview Time10
Operation Instructions

**Please take care to not rip the plastic sheet**

Take the lung out of the bag it is stored in.  This represents a small adult lung.  When you unfold the sheet, you see the true size of a single lung .  The sheet has a surface area of 37.5 square meters.​

Demo on DimeNo
PIRA 200No
Export Instructions (if different)

​Because oxygen diffuses through the walls of the alveoli into the enveloping capillaries, surface area plays a key role.  The estimated total surface area of lungs vary from 50-75 sq meters, roughly the area of one side of a tennis court.

Category1 Mechanics
Subcategory1A - Measurement
Keywordssurface area, lung, human body, human lung, size
Construction Information
​The surface of half of the sheet of plastic is covered in veins that were spray painted on using a template.  Due to the amount of time it took to spray paint half of the sheet, it was never finished.
Plastic Sheet - 37.5 sq m - painted with veins
magnetic poster hangers