Through your MOUTH and your NOSE.
maybe your question goes this way..."how does oxygen enter the blood from the lungs?"Two types of blood vessels carry blood throughout our bodies: The arteries carry oxygenated blood (blood that has received oxygen from the lungs) from the heart to the rest of the body. The blood then travels through the veins back to the heart and lungs, where it receives more oxygen.
The right atrium of the heart receives oxygen-poor blood from the body.
Blood gets oxygen in the cells. This is part of the body system.
Because your muscles need oxygen and oxygen is in the blood so the heart pumps bloid around the body
because the body needs oxygen, which is received from the heart to perform all activities
Lungs
Oxygen enters via the lungs.
The respiratory system.
It enter when you breathe. You let go of Carbon in your body when you breathe out, and let fresh air or oxygen enter your body when you breathe in.
oxygen enters the body when you breathe entering through the nose or the mouth. the red blood cells carry oxygen throughout the entire body.
Blood picks up oxygen and releases carbon dioxide in the lungs.
Blood picks up oxygen and releases carbon dioxide in the lungs.
By breathing, Oxygen is part water.
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.
Oxygen enters the body by travelling into the lungs, it then diffuses through the alveoli cell wall into the body's biggest artery, the aorta.
After entering it takes the left pump after entering
Raw materials and harmful wastes enter and exit the cells in your body by blood, the red blood carry oxygen from lungs to the body cells.