When at rest, the amount of air that enters and leaves the lungs in a normal respiratory cycle is the
A)total lung capacity.
Contraction of which muscle normally accounts for around 75% of the air movement in normal quiet breathing?
Which of the following is defined as the maximum amount of air that can be moved into and out of the respiratory system in a single respiratory cycle?
B)inspiratory reserve volume
D)expiratory reserve volume
Forced breathing during exhalation involves contraction of the internal intercostal muscles and the