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For air sacs to do their job their walls must be kept?
lubricated
Why are lung arterioles relatively thin-walled?
Lung arterioles are relatively thin-walled to allow for gas exchange to occur easily. Thin walls help facilitate the diffusion of oxygen from the air sacs in the lungs into the bloodstream and carbon dioxide out of the bloodstream and into the air sacs. This design maximizes efficiency of gas exchange in the lungs.
Why must air sac walls be very thin?
so the air can go thought it easily
What is emphyzema?
Hyper inflation of air sacs with destruction of alveolar walls.
What is the name of the clusters of thin-walled air sacs in the lungs?
Alveoli
What has more oxygen air sacs or blood?
Blood contains more oxygen than air sacs. Oxygen from inhaled air diffuses across the walls of the air sacs into the bloodstream, where it binds to hemoglobin in red blood cells for transport to tissues throughout the body.
Why is it easy for gases to pass between air sacs and blood?
Gases can easily pass between air sacs and blood due to the thin barrier of the respiratory membrane. This barrier consists of a single layer of epithelial cells in the air sacs and a single layer of endothelial cells in the capillaries, allowing for efficient gas exchange through diffusion. Additionally, the large surface area of the alveoli and the high concentration gradient of gases between the air in the lungs and the blood facilitate rapid exchange.
What is the main job of the alveoli?
The alveoli, the small sacs of air at the ends of the terminal bronchioles, are the sites of the exchange between oxygen and carbon dioxide.
What are the tiny air sacs called which oxygen and carbon dioxide pass in and out of the bloodstream?
The tiny air sacs are called alveoli. Oxygen from the air enters the bloodstream through the walls of the alveoli, while carbon dioxide from the bloodstream is released into the air sacs to be exhaled.
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!
What is the medical term meaning hyperinflation of air sacs with destruction of alveolar walls?
Emphysema or Pulmonay emphysema
What is a thin-walled air sac that serves as a site for gas exchange is called?
An alveolus is a single air-sac, and alveoli are multiple air-sacs.
