The partial pressure of carbon dioxide in the blood returning to the lungs from the body is: about
A) 26 mm Hg
B) 46 mm Hg
C) 56 mm Hg
D) none of the above

Question

Quizplus · Accepted Answer

The partial pressure of carbon dioxide in the blood returning to the lungs from the body is approximately 46 mm Hg. This is because carbon dioxide is produced as a waste product in the body and diffuses into the bloodstream, where it is transported to the lungs for elimination. At this point, the partial pressure of carbon dioxide in the blood is around 46 mm Hg.

The Partial Pressure of Carbon Dioxide in the Blood Returning