Just before we inhale, __________.
A. both alveolar pressure and intrapleural pressure decrease
B. both alveolar pressure and intrapleural pressure increase
C. alveolar pressure increases and intrapleural pressure decreases
D. alveolar pressure decreases and intrapleural pressure increases
Answer: A
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.