The capillaries absorb oxygen at the lungs. This occurs near the alveoli.
Carbon dioxide is produced as a waste product of respiration, and is taken in the bloodstream to the capillaries outside the lungs, where the CO2 diffuses into the alveoli of the lungs.
The respiratory system seems like the obvious answer, but you used the word absorb. The respiratory system takes air into the lungs, but the red blood cells (erythrocytes) absorb the oxygen out of the air taken into the lungs. The circulatory system then delivers these red blood cells to the capillaries where the oxygen is traded for carbon dioxide as the cells need.
Capillaries in Villi absorb all other nutrients except fat.
greater concentration of oxygen in the air sacs of the lungs than in the capillaries.
the blood absorb oxygen in the lungs(cappilaries)
The lungs contain air sacs called alveoli which are surrounded by blood capillaries to allow gaseous exchange.
They absorb so much oxygen because of the Alveoli. An Alveoli are the endings of small tubes that are located in your lungs and transfer oxygen to your capillaries.
oxygen
It diffuses because the concentration of oxygen in the capillaries is lower than the concentration of oxygen in the air (law of diffusion).
capillaries
The smallest vessels in the human body are capillaries. They are the blood vessels that absorb oxygen into the blood and returning blood cells that lack oxygen back into the heart and lungs to be oxidised.
1) It's not the lungs. It's the haemoglobin in blood cells that allow blood cells to carry oxygen to where it is needed.2) Lungs can absorb a large amount of oxygen because of alveoli. There are small tubes in lungs which have alveoli at there ends. The alveoli are surrounded by a network of capillaries. At these capillaries is where the blood picks up its cargo of oxygen from the air.Oh and it is hemoglobin not haemoglobin okay Soggy2002!I happen to be from England, the birthplace of the English language, where we spell it 'haemoglobin'. Okay, MsMM1987?Air moves from the trachea to the bronchi the passage that direct air into the lungs