Which of the following results in decreased gas exchange in older adults? a) The elasticity of the lungs increases with age. b) The alveolar walls become thicker. c) The number of alveoli decreases with age. d) The alveolar walls contain fewer capillaries.
Which of the following results in decreased gas exchange in older adults?
a) The elasticity of the lungs increases with age.
b) The alveolar walls become thicker.
c) The number of alveoli decreases with age.
d) The alveolar walls contain fewer capillaries.