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Q.
Which of the following would have the same $O_2$ content?
Breathing and Exchange of Gases
Solution:
Blood entering the right side of the heart i.e., right atrium is a deoxygenated blood having partial pressure of $40\, mm \,Hg$. Blood leaving the right side of the heart i.e., right ventricle will also have almost same partial pressure as the blood is moving from right atrium to right ventricle and also no exchange of gases occurs in this path.