Analogy type question:
$(1)$ Atmospheric air enters: Inspiration :: Alveolar air released out: ..........
$(2)$ $O_2$ in alveoli: $104 \, mm \, Hg$ :: $CO_2$ in alveoli: ..........
$(1)$ Atmospheric air enters: Inspiration :: Alveolar air released out: ..........
$(2)$ $O_2$ in alveoli: $104 \, mm \, Hg$ :: $CO_2$ in alveoli: ..........
- AExpiration,$40 \, mm \, Hg$
- BInspiration,$45 \, mm \, Hg$
- CExpiration,$45 \, mm \, Hg$
- DInspiration,$40 \, mm \, Hg$
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