They pick up oxygen
Yes it does
In the lungs, in the alveolar capillaries
Capillaries surrounding cells pick up blood containing Water (dissolved in the plasma) and carbon dioxide (on the red blood cells) to bring it back through the veins and to the lungs. If I didn't answer your question or you want to ask more, post a message on my message board!
In the lungs, oxygen diffuses from the air sacs (alveoli) into the surrounding capillaries. These capillaries are thin-walled and have a large surface area for efficient gas exchange. The oxygen then binds to hemoglobin in red blood cells, forming oxyhemoglobin, which is then carried by the bloodstream to the tissues.
yes
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.
absorption
They are called Alveoli.
greater concentration of oxygen in the air sacs of the lungs than in the capillaries.
The alveoli of the lungs are surrounded by capillaries. As the blood travels through the capillaries, the red blood cells become oxygenated and give up their load of CO2
The lungs contain air sacs called alveoli which are surrounded by blood capillaries to allow gaseous exchange.