Heart has two sides (4chambers) separated by a septum.One side it collects the impure blood ie from all the parts of our body and pumps it to lungs. At lungs through alveoli the co2 diffuses out and oxygen enters the blood. this pure blood (oxygenated blood) enters the other side of heart from where it is pumped to all body parts AND cycle continues.
You use your lungs to breath. Your heart pumps the blood round your body (including into and out of the lungs where gas exchange occurs when you breath).
Oxygen
The lungs hold air that is breathed in. Oxygen gas in the air moves into the blood. The heart pumps to transports this oxygenated blood to cells in the body that need it to produce energy.
How much oxygen the blood is receiving (also how well the lungs are functioning) and carrying from the heart to the body's systems.
The lungs provide for gas exchange between the blood and the air. So when your heart pumps blood to your lungs, the lungs provide an area for blood to absorb oxygen from the air we breath in and to rid its self of excess carbon dioxide, which is then exhaled.
You use your lungs to breath. Your heart pumps the blood round your body (including into and out of the lungs where gas exchange occurs when you breath).
Oxygen
Oxygen
oxygen
Oxygen
Oxygen
Carbon Dioxide
The lungs hold air that is breathed in. Oxygen gas in the air moves into the blood. The heart pumps to transports this oxygenated blood to cells in the body that need it to produce energy.
The pulmonary artery takes carbon dioxide (CO2) from the heart to the lungs. Oxygen is then carried back to the heart by the pulmonary vein. Finally, the aorta/arteries carry oxygen to the body.
Carbon Dioxide (CO2)
It's referred to as Carbon dioxide. It is the main cellular waste product that is carried in the blood to the lungs through the heart.
The heart and lungs are so close together because the lungs have oxygen that are pumped into the heart so it can go into the blood stream. The lungs don't have blood but they transmit oxygen to the heart for the blood stream.