Question

3. How does the oxygen reach all the cells of your body?
Answer in short​

Answer 1

Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.

Answer 2

Answer:

By pulmonary viens to single cell capillaries where oxygen and carbon dioxide exchange place.