The heart pumps blood to the lungs to be reoxygenated. Valves in our veins and the muscle contractions of our legs helps bring blood from the lower limbs to the heart.
The alveoli
gas exchange occurs in the alveoli in the lungs where deoxygenated blood gets oxygen, that blood then goes to the heart and is pumped through the body through the aorta and the arteries, which brings oxygen to the body cells.
There are many capillaries in the lungs. These small blood vessels are the site of gas exchange in the alveoli.
Alveoli- these are the small sac-like structures where gas exchange occurs with the blood. Its creates an ideal site for gas exchange between the air in the lungs and the blood in the capillaries.
False
alveolus
Lungs do not pump blood. They are the site of gas exchange between capillaries and alveoli.
The flow of blood in the body is facilitated by the pumping action of the heart, which carries oxygenated blood from the lungs to the rest of the body and returns deoxygenated blood to the lungs for reoxygenation. Gas exchange occurs primarily in the alveoli of the lungs, where oxygen from the air diffuses into the bloodstream and carbon dioxide is released from the blood into the air to be exhaled.
There is exchange of CO2 and O2 in the lungs of aerobic vertebrates. The process is generally referred to as gas exchange. It depends on what organism you're talking about. It could be the skin, gills, lungs, or any other structure. In the lungs is the Alveoli.
The lungs mate...
Gas exchange happens in the bed of CAPILLARIES in the lungs.
Gas exchange between the air and the blood occurs in the alveoli of the lungs. The alveoli are tiny air sacs where oxygen from the air diffuses into the blood and carbon dioxide from the blood diffuses into the air to be exhaled.