Exhalation begins when
A) inspiratory muscles relax.
B) the diaphragm contracts.
C) blood circulation is the lowest.
D) inspiratory muscles relax and the diaphragm contracts.
E) All of these choices.
Correct Answer:
Verified
Q4: Pitch is controlled by
A) vibration of the
Q5: These are triangular pieces of mostly hyaline
Q6: This is the primary gas exchange site.
A)
Q7: Which is the direction of diffusion of
Q8: During swallowing, which structure rises?
A) pharynx
B) esophagus
C)
Q10: Which of the following is not part
Q11: Which of the below tissues provides the
Q12: The conducting airways with the air that
Q13: This structure prevents food or water from
Q14: Which of the following is a passageway
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