Tell me what is the position of the ribs & diaphram in inhaling and exhaling oxygen?
Asked by | 12th Mar, 2008, 08:03: PM
During inspiration the muscles attached to ribs contract as a result ribs move outwards. The diaphragm moves downward which creates vacuum in the lungs and a fall in pressure and sucks the air from outside.
The vice versa movement of ribs and diaphragm facilitate exhalation.
Answered by | 14th Mar, 2008, 10:05: AM
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