Alveoli: The plural of alveolus. The alveoli are tiny air sacs within the lungs where the exchange of oxygen and carbon dioxide takes place.
Alveoli. The alveoli are the final branchings of the respiratory tree and act as the primary gas exchange units of the lung. The gas-blood barrier between the alveolar ...
noun, plural -li . 1. a little cavity, pit, or cell, as a cell of a honeycomb. 2. an air cell of the lungs, formed by the terminal dilation of tiny air passageways. 3 ...
The alveoli (singular: alveolus) are very small porous air sacs found in the lung tissue of certain organisms. The lungs use passive osmotic diffusion which does not require ...
The oxygen exchange in the lungs takes place across the membranes of small balloon-like structures called alveoli attached to the branches of the bronchial passages.
Alveoli: The plural of alveolus. The alveoli are tiny air sacs within the lungs where the exchange of oxygen and carbon dioxide takes place. Last Editorial Review: 1/1/2004