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Oxygen passes into the capillaries that surround the alveoli. The thin walls of the capillaries make this diffusion easier.
Wiki User
∙ 9y ago
Wiki User
∙ 12y agoThe alveoli.
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Surronding each air sac are small tubes that bring and carry blood what are they called?
The capillaries are the small blood vessels that surround each alveolus, or air sac.
Surrounding each air sac are small tubes that bring and carry away bloodthey are called what?
The capillaries are the small blood vessels that surround each alveolus, or air sac.
Does the papillary muscle surround the pericardial sac?
No
What will happen to carbon dioxide as blood flows around the alveoli?
The CO2 is diffused back into the alveoli, where, by the diaphragm, is pushed back into the environment by atmospheric pressure.
What is the name of the organ that you use to breathe in oxygen?
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!
Around the wall of each air sac in the lungs is a web of what?
capillaries
What tiny air sac is surrounded by blood capillaries?
Alveoli which are in your lungs
What is a tiny air sac surrounded by blood capillaries?
Alveoli which are in your lungs
What are the elastic sac-like structures in the lungs that are lined up with the capillaries?
They are called Alveoli.
What structures form a web around the wall of each air sac in the lungs?
capillaries
Which type of blood vessel surrounds the wall of each air sac?
Pulmonary capillaries
What two body parts surround and protect the fetus as it develops?
uterus and the amniotic sac
