Multiple Choice
Approximately how many alveoli do the lungs contain?
A) 50 million
B) 500 million
C) 5 billion
D) 50 billion
E) 500 billion
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q52: Figure 13-4<br>Use the figure above (Figure 13-4)to
Q53: The diffusion constant for CO₂ is _
Q54: Gas exchange at both the pulmonary capillary
Q55: What is the respiratory quotient (RQ)?<br>A)The ratio
Q56: Figure 13-4<br>Use the figure above (Figure 13-4)to
Q58: The _ center prevents the inspiratory neurons
Q59: Profound constriction of the smaller airways caused
Q60: What is the average respiratory quotient (RQ)based
Q61: Anatomic dead space greatly affects the efficiency
Q62: _ stimulation promotes bronchiolar smooth muscle contraction,which