yes i does because you breath through your nose and mouth
'c' heart pumps oxygen rich blood, 'a' oxygen rich blood arrives at capillaries, 'd' oxygen moves through capillary walls, 'b' oxygen enters body cells.
The mouth I think.
When blood that is rich in oxygen re enters the heart, the blood enters through the pulmonary valve. The pulmonary valve brings the oxygen rich blood to the pulmonary trunk of the pulmonary artery.
As soon as it enters the mouth.
trachea sends dioxygen molecules to the lungs and blood carries it to muscles.
Through your mouth and nose
mouth and nose
oxygen enters the body when you breathe entering through the nose or the mouth. the red blood cells carry oxygen throughout the entire body.
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 rich air enters the body through the lungs.
As the diaphragm contracts, air enters the body through the nose and mouth.
Through your nose and mouth.
The respiratory system.
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.
The air enters through the mouth or the nose and is pulled down through the windpipe into the lungs. From the lungs, the oxygen molecules are dissolved in the alveoli and enter the red blood cells in the capillaries of the lung. From the capillaries, they travel to the heart and push oxygen through the body.
nose or mouth
lung