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lungs
Lungs are made up of millions of alveoli and bronchial tubes.
Lungs
Alveoli are tiny sacs of air located in your lungs. There are millions of them in your lungs, and they fill up with oxygen when you inhale. They greatly increase the surface area of the lungs so that more oxygen can enter your bloodstream.
alveoli
alveoli
In your lungs.
The lungs are spongy because of the millions of alveoli or air sacs found it them. These alveoli expand when air is inhaled so when it is in a state that contains no air, little spaces are formed making them feel spongy.
lungs look like spongy lobes. They have this qualiity for easy gas transfusions and buoyancy. Your lungs are mostly made up of tiny air sacs called alveoli. This gives the lungs a spongy, or porous look to them.
---------------------------- The exchange of gasses takes place across the Alveoli, which are air spaces surrounded by very small air sacs and have a rich supply of blood, because they are surrounded by capillaries. The lungs are made up of many alveoli which are the respiratory surface. Oxygen diffuses from the alveoli into the blood in the capillaries and carbon dioxide diffuses from the blood in the capillaries into the alveoli.
lungs
They are called Alveoli.