★ Anatomy & Physiology: Respiratory Quiz
During expiration, the diaphragm ___ causing a(n) ___ in thoracic volume and a(n) ___ in the alveolar pressure.
A. Relaxes; decrease, increase
B. Relaxes; increase, decrease
C. Contracts; decrease; increase
D. Contracts; increase; decrease
Preview next quiz:
To increase CO2 levels in the blood, a person should
A. Breathe faster than normal
B. All of the choices are correct
C. Take deeper and longer breaths
D. Hold their breath
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