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Building A Model Lung. 1. Design your own working model of the lung using the materials given below: transparent plastic bottle , balloon , rubber sheet (plastic glove), clay, Y-tube, tape/ rubber band, other accessories 2. Complete the handout for the
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Building A Model Lung 1. Design your own working model of the lung using the materials given below: transparent plastic bottle, balloon, rubber sheet (plastic glove), clay, Y-tube, tape/ rubber band, other accessories 2. Complete the handout for the model building activity.
DIAPHRAGM Dome-shaped muscle attached to rib cage that contracts& flattens out during breathing
PRESSURE force of air pressing down Less air particles- Low air pressure More air particles- High air pressure
High to Low Pressure (Many to Less) How do you change thepressure?
Air pressure (inside balloon Air pressure (empty space) Air pressure (outside air)
Breathing – The Lungs Breathing animation "nature hates a vacuum" http://www.biosci.ohiou.edu/introbioslab/Bios170/diffusion/Diffusion.html
Breathing in - inhaling Rib cage expands Diaphragm moves downward Pressure reduces inside lung Result – air is drawn into the lungs
Breathing out - exhaling Rib cage contracts Diaphragm moves upward / inward Pressure increases inside lung Result – air is pushed out of the lung
Breathing – The Lungs Breathing animation Write a paragraph explanation/ summary on how breathing works. Discuss the role of the ribcage and the diaphragm and how these creates a pressure difference so breathing can take place. "nature hates a vacuum" http://www.biosci.ohiou.edu/introbioslab/Bios170/diffusion/Diffusion.html