i guess...the red blood cells just pick up the oxygen moleclues and bring it to where the body needs it....it just kinds seeps in
They are the alveoli.
air sacs
Because the air sacs carry oxygen to the blood!
Oxygen enters the pulmonary blood in the capillaries of the alveoli -- the air sacs of the lungs.
Oxygen enters the blood stream through the air sacs in you lungs.
true
In the air sacs oxygen and other gases are stored and separated to be put into the blood stream.
the air goes into your lungs. In your lungs there are billions of tiny air sacs. Surrounding each air sac is a network of blood capillaries. The air sacs and the blood capillaries are separated by a thin membrane. Across this membrane the air sacs give the blood capillaries oxygen and they blood capillaries give the air sacs carbon dioxide. We breathe out this carbon dioxide!
in the micro air sacs
Oxygen moves into the capillaries from the air sacs. Carbon dioxide moves out the the capillaries into the air sacs.
The humorus
AVEVOLIS