Question

Partial pressures (in $mmHg$) of respiratory gases at different regions are given below
$\begin{array}{cccc}\text{Respiratory gas}& A& B& C\\ \text{Oxygen (P)}& 159& 104& 40\\ \text{Carbon dioxide (Q)}& 0.3& 40& 45\end{array}$
Identify the regions $A,B$ and $C$ respectively from the options

• A. $P$ -Alveoli, deoxygenated blood, oxygenated blood
• B. $Q$ - Tissues, lung alveoli, oxygenated blood.
• C. $P$ - Atmospheric air, alveoli, deoxygenated blood
• D. $Q$ - Atmospheric air, oxygenated blood, alveoli

Answer 1

Answer: (C)

Correct answer is (c) $P$ - Atmospheric air, alveoli, deoxygenated blood