clar697
Forum Guru
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Static pressure-volume relationships for the lung and chest wall of a 30-year-old man are shown in the graph. Which of the following is the volume remaining in the lungs at the end of a normal expiration (in L)?
A) 0.5
B) 1
C) 1.5
D) 2
E) 2.5
Attached Files:
graph.bmp (257 KB, 66 downloads)
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| Jackofknives
Ipwnpoker.com
Topics: 91
Posts: 741
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D
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| littledoc
Forum Elite
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how? plz explain
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| hitesh
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Topics: 64
Posts: 1,084
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D) 2
During expiration, the lungs have a positive pressure causing the alveoli to collapse, while the chest wall puts an opposing negative preuusre on the lungs.. Expiration ends when these two pressures are equal (and opposite).. In the figure, this occurs at a volume of 2L
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| ittop
Forum Newbie
Topics: 1
Posts: 28
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the question is asking about frc
frc is when p=0
at this volume is 2.5ltrs
am i wrong??
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| icarus
Forum Senior
Topics: 29
Posts: 192
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Just to make the graph more usual, can you guys tell us the points of the resp. cycle represented on this graph ?
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