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The lungs.
The lungs are responsible for exchanging gases between the inhaled air and the blood in the body. Oxygen is taken in by the lungs and carbon dioxide is released from the blood to be exhaled.
The fluid that carries gases to the body is blood. Oxygen is transported from the lungs to tissues by red blood cells, while carbon dioxide is transported back to the lungs to be exhaled.
The lungs are adapted for their function of gas exchange by having a large surface area provided by tiny air sacs called alveoli, where oxygen and carbon dioxide are exchanged with the blood. This large surface area allows for efficient diffusion of gases. Additionally, the lungs are highly vascularized, meaning they have an extensive network of blood vessels to transport gases between the lungs and the rest of the body.
Lungs are an important part of the respiratory system in our body and it is because of lungs that we can burn the energy in our bodies. The oxygen and carbon dioxide in lungs is carried in or out of them with the help of blood vessels. This means that the blood vessels carry the oxygen to the body from the lungs and the carbon dioxide do the opposite thing. The red blood cells present in blood carry these respiratory gases and if there is inadequate blood supply to the lungs then the gases will not be absorbed properly. If the absorption of gases is faulty then the body will be deprived of the ability to burn energy, ultimately life.
Frizzophigus
Your lungs refine oxygen from the other gases in air because the gases diffuse through the cell walls in the alveoli in your lungs through osmosis (higher concentration of gases in the air than in the blood, so gases move from the higher concentration to the lower concentration) where they contact the red blood cells. The hemoglobin in the red blood cells binds to the oxygen and leaves all the other gases alone. It moves on from the lungs and delivers the oxygen to the rest of the body. It's the hemoglobin that does the work.
Same blood as everywhere else. The difference is the gases in the blood: it enters the lungs low on oxygen and high in CO2, it leaves high in oxygen and low in CO2.
Gas exchange happens in the bed of CAPILLARIES in the lungs.
It is part of the reproductive system. it is the opening to the birth canal
When the right ventricle contracts it is pushes blood to the pulmonary arteries and to the capillaries of the lungs where exchange of gases takes place
Diffusion. In the lungs, oxygen will diffuse into de-oxygenated blood (oxygen was removed from the blood in the body) and carbon dioxide will diffuse out of the blood into the lungs and expelled from your body when you breathe out.