During inspiration,
A) intra-alveolar pressure falls below atmospheric pressure.
B) the diaphragm contracts.
C) the internal intercostal muscles contract.
D) conditions a and b exist
E) conditions a, b, and c exist
Correct Answer:
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Q7: A transmural pressure gradient exists across the
Q8: In addition to gas exchange, the respiratory
Q9: When the diaphragm contracts,
A)the volume of the
Q10: Which of the following is the last
Q11: The respiratory quotient is
A)the rate at which
Q13: Under normal conditions, when _ pressure becomes
Q14: Inspiratory events occur because
A)the air pressure in
Q15: The inspiratory muscles include the
A)diaphragm and internal
Q16: At the end of a normal expiration,
Q17: Which activity below is not a respiratory
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