ippie

ippie
10+ Year Member
7+ Year Member
Jun 12, 2006
162
0
NY
Status
Pre-Dental
Negative pressure breathing in human lungs results from

I. contraction of the diaphragm.
II. relaxation of the diaphragm.
III. incompressibility of intra-pleural fluid


The answer is I and III.
Anybody can explain III?
 
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