What is the percentage of gas in the human body?
What do you mean by percentage of gas in human body?
There is no free gas in human body anywhere.
Lungs are filled with atmospheric gases and humidity. There is 5% humidity in alveolar sac.
Arterial blood is with 20 vol of oxygen. It means 14 gms of hemoglobin holds 20 ml of oxygen.
Venous blood is with 15% of oxygen with same amount of hemoglobin. It also holds 5ml of Carbon dioxide.
Alimentary canal is without any oxygen. It is with released gases from digested and putrefied food.