Oxygen enters via the lungs.
Oxygen enters via the lungs.
your nose
The nose.
Oxygen enters the blood in the alveoli of the lungs
After the mouth (or nose), oxygen (as part of the air) goes down your trachea, into the bronchi, and through the bronchioli, into the alveoli, where it enters the blood and gets taken via the blood to the various parts of your body.
Oxygen rich air enters the body through the lungs.
oxygen
Oxygen enters via the lungs.
your nose
Through your mouth and nose
Air, oxygen
The respiratory system.
mouth and nose
About 20%.
The function of the respiratory system is to provide the body with oxygen. Oxygen enters the body through the respiratory system and is carried in blood throughout the body.
The nose.
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)