Through your mouth and nose
Oxygen enters our body through the process of respiration. When we inhale, air containing oxygen enters our lungs. The oxygen then diffuses from the air sacs in the lungs into the bloodstream, where it is carried by red blood cells to tissues throughout the body.
Oxygen rich air enters the body through the lungs.
oxygen
Oxygen enters your body through the lungs during the process of breathing. The air you inhale contains oxygen, which is then absorbed into the bloodstream in the lungs and transported to cells throughout the body.
Air, oxygen
The respiratory system.
mouth and nose
The brain uses about 20% of the oxygen that enters the body. Oxygen is crucial for energy production and maintaining brain function. Any disruption in oxygen supply can have serious consequences for brain health.
The lungs are the organs where oxygen enters the body and carbon dioxide leaves it through the process of respiration. Oxygen is taken in when breathing and carbon dioxide is released when exhaling.
Oxygen (O2) enters your body through breathing air, which contains oxygen in it. This oxygen goes into your lungs where it is put into the bloodstream, supplied to cells in your body, returned to the lungs as carbon dioxide (CO2), and exhaled through the lungs.
Air enters the body when you inhale (Breathe in) air enters through the mouth and into the lungs. and then exhale (Breathe out) carbon dioxide (CO2)
Oxygen in the lungs and passes through the alveoli, small sacs which allow gas exchange, and enters the blood to be pumped throughout the body.