Respiratory System Structure and Gas Exchange (3B)
Bio & Biochem · Flashcards
BIO & BIOCHEM · FLASHCARDS
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QUESTION
What is the direction of
O
2
O_2
O
2
diffusion at the alveolus when
P
A
O
2
>
P
a
O
2
P_{A O_2}>P_{a O_2}
P
A
O
2
>
P
a
O
2
?
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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