1) Air cells 2) Air cells in the lung 3) Air sacs in the lungs 4) Honeycomb cells 5) Lung cells 6) Lung sacs 7) Lung structures 8) Parts of the lungs 1) Air cells 2) Air sacs 3) Sacs 
• (pl. ) of Alveolus
Tiny air sacs at the end of the bronchioles (tiny branches of air tubes) in the lungs. The alveoli are where the lungs and the bloodstream exchange carbon dioxide and oxygen. Carbon dioxide in the blood passes into the lungs through the alveoli. Oxygen in the lungs passes through the alveoli into the blood.
A small cell containing air in the lungs, a sac-like dilation of the alveolar ducts in the lung (plural: alveoli) ... (27 Sep 1997) ... 
Tiny milk-producing sacs that are arranged in clusters throughout the breast. Each breast has hundreds of alveoli. Once the milk is produced, it's secreted into tube-shaped ducts that travel to the nipple.
(Humans as organisms) tiny air sacs in the lungs where gas is exchanged during breathing
Air sacks in the lung tissue
Type: Term Pronunciation: al-vē′ō-lī Definitions: 1. Plural of alveolus.
Alveoli: The plural of alveolus. The alveoli are tiny air sacs within the lungs where the exchange of oxygen and carbon dioxide takes place. Common Misspellings: aveoli
Small milk-producing sacson the breast. Both breasts have hundreds of alveoli, rearranged in clusters, resembling a bunch of grapes. Progesterone increases the size of the alveoli during pregnancy.
The alveoli are air-sacs within the lung at the end of bronchioles.The alveoli are the tiny sacs at the ends of the bronchial tree. Each small bronchiole divides into half a dozen or so alveolar ducts, which are the narrow inlets into alveolar sacs. Each alveolar duct subdivides, leading into three or more alveolar sacs. Each large alveolar sac is like a grape cluster which contains ten or more alveoli. Because th...
alveoli (plural)
cul-de-sacs or small air pockets within the lung that facilitate gas exchange
(air sacs) Little air sacks at the end of the airways in the lungs. This is where oxygen is absorbed into the bloodstream and the waste gas carbon dioxide filters back into the lungs to be breathed out.
Tiny, thin-walled, inflatable sacs in the lungs where oxygen and carbon dioxide are exchanged.
tiny sacs that are the smallest airways of the lungs.
Air sacs in the lungs where oxygen and carbon dioxide are exchanged.
Tiny milk-producing sacs that are arranged in clusters throughout the breast. Each breast has hundreds of alveoli. Once the milk is produced, it's secreted into tube-shaped ducts that travel to the nipple.