The lungs take in oxygen directly from the air.
the lungs
Your nose and mouth.
your stomach is on the left side of your body
Your stomach
stomach
The lungs are the organ that takes air into the body. The air is taken in through the nose and the mouth.
Breathing. Inhaling oxygenated air through our nostrils.
By digesting the food that you eat.While in the process of digesting the food the stomach takes out anything useful to your body. Then it sends the useful things to the correct systems or parts in your body.
Is food in the stomach in the external or internal environment of the body?
Your body takes in air through your nose and mouth. There is another interpretation of the original question. "to respire"
of course not don't be absurd
when you inhale and exhale the air get into the stomach
The lungs take in oxygen directly from the air.
the lungs
Most of the physical digestion takes place in the stomach, but the completion and absorption is done in the small intestine.
Your body takes what it needs and then the rest gets exhaled out and goes into the atmosphere.