Other than breathing, how does oxygen enter the body?

1 Answer
Mohan M.
Feb 2, 2018

Any surface thin enough and mist allows oxygen to get in body.

Explanation:

Oxygen or respiratory gases can pass through moist surface thin enough. Lung alveoli pass oxygen from air to blood cells through plasma.
Oral cavity epithelium also pass oxygen. For example buccal cavity of frog is respiratory.
Outermost surface of eye that is conjunctiva passes oxygen.
At the same time gases are transported against difference in partial pressure of gases. With same mechanism carbon dioxide comes out of the body.

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