Alveoli Diagram. Alveoli are an important part of the respiratory system whose function it is to exchange oxygen and carbon dioxide molecules to and from the bloodstream. The trachea or windpipe helps supply air to the lungs by providing a passage way from the mouth.
Between the alveoli is a thin layer of cells called the interstitium which contains blood vessels and cells that help support the alveoli. The term alveolus singular refers to a hollow cavity basin or bowl in latin. Bronchioles and alveoli in the lungs.
These tiny balloon shaped air sacs sit at the very end of the respiratory tree and are arranged in clusters throughout the lungs.
However alveoli are most often used to describe the small air sacs of the lungs of mammals and are therefore known more specifically as the pulmonary alveoli. The lung alveoli are the balloon like air sacs loacted at the. The alveoli are just one cell in thickness which allows the gas exchange of respiration to take place rapidly. The trachea or windpipe helps supply air to the lungs by providing a passage way from the mouth.
