Question : What is the value of W, X, Y and Z normally (in mmHg) ?

1.	Question : What is the value of W, X, Y and Z normally (in mmHg) ?
Answer» `{:("W",X,Y,Z),(95,40,45,40):}` `{:("W",X,Y,Z),(95,40,40,45):}` `{:("W",X,Y,Z),(40,45,95,40):}` `{:("W",X,Y,Z),(95,45,40,40):}` Solution :In the TISSUES, exchange of gases occur between the blood and the tissue cells. Blood that reaches the tissue has more particles PRESSURE of `O_(2)` (`PO_(2) = 95` mm Hg), than that already in the tissues (`PO_(2) = 40` mm Hg). Similarly partial pressure of `CO_(2)` is more in tissues (`= 45` mm Hg) than in the blood (`= 40` mm Hg). due to hese difference in paricle pressure of gases, `O_(2)` from diffuse in the tissues and `CO_(2)` from tissue diffuses into the blood. This exchange of gases occurs simultaneously.

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