Respiratory System Structure and Gas Exchange (3B)
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QUESTION
What is the primary muscle of inspiration in quiet breathing?
QUESTION
What type of epithelium lines most of the trachea and primary bronchi?
QUESTION
State the law that relates alveolar pressure to surface tension and radius.
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ANSWER
P
=
f
r
a
c
2
T
r
P=frac{2T}{r}
P
=
f
r
a
c
2
T
r
(Laplace law). It shows pressure required to prevent collapse is inversely proportional to radius and directly to tension.
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