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Oxygen Molecule Journey
Step 11
Oxygen Molecule Journey
Oxygenated blood now flows through arteries in the body. It then enters capillaries where it can be diffused into cells to be used in cellular respiration, to create energy.
By: Jasmin Atwood & Rachel Hansen
Step 16
The carbon molecules must now exit the body. They move up the trachea, and are breathed out through the nose or the mouth.
Step 1
Step 10
First the oxygen, along with dust particles, enter the body through the nasal cavity. The nose has hairs, in which help stops the dust from getting into the body and also warms the air. The mouth cavity is also a way of getting air in, but the nose is more efficient.
Now blood has entered the aorta and will be distributed to the rest of the body and to the cells of the body.
Step 7
Oxygenated blood enters the heart through the pulmonary vein, and enters the left atrium.
Step 14
The deoxygenated blood is now in the pulmonary artery where it will be pumped back to the lungs.
Step 2
The trachea is the next step. This is what provides air flow to the lungs, and from the lungs. This is a tube-like structure that leads to the lungs.
Step 8
Blood enters the left atrium and then is pushed through the bicuspid valve
Step 15
Now the blood in the capillaries has high levels of carbon dioxide and the carbon molecules diffuse with the oxygen molecules that are being breathed in.
Step 12
The blood is now deoxygenated and enters the heart through the vena cava. It is then in the right atrium where it is pushed through the tricuspid valve.
Step 3
Step 9
Step 4
Then the blood is in the left ventricle, it is then pushed through the aortic semi lunar valve.
After the oxygen goes through the bronchi, it the branches into smaller structures called the bronchioles. Bronchioles are basically passage ways for the air to reach the alveoli.
The lungs is the next step, and it is a very important step. As oxygen enters the lungs through the bronchi, they expand and get bigger with the more oxygen given. The lungs allow oxygen to be taken into the body and give oxygen to the red blood cells.
Step 13
Step 6
Blood is now in the right ventricle and is pushed through the pulmonary semi lunar valve.
Oxygen enters the bloodstream through the capillaries and then into bigger vessels. This oxygenated blood then flows into the heart.