Sound is produced by air being expelled from the lungs and passed over the vocal cords.
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Q3: The most difficult part of breathing for
Q4: Where does oxygen release the energy stored
Q5: Health care workers use a spirometer to
Q6: Quiet breathing at a normal rate is
Q7: There are about 500 million alveoli in
Q9: An abnormally rapid and shallow rate of
Q10: Chemical control of respiration is dependent on
Q11: Overinflation of the lungs during inhalation is
Q12: The larynx gives resonance to the voice.
Q13: External respiration involves the use of oxygen
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