Which of the following is true because of the dead air space in the passageways?
A) The carbon dioxide level in the lungs is always higher than that in the atmosphere.
B) Air exchange is more complete.
C) The carbon dioxide level in the lungs is always lower than that in the atmosphere.
D) The lungs receive a complete exchange with fresh air every cycle.
E) all of the above

Question

Quizplus · Accepted Answer

The dead air space in the respiratory system means that not all the air in the lungs is exchanged with each breath, leading to a higher concentration of carbon dioxide in the lungs compared to the atmosphere.

Which of the Following Is True Because of the Dead