Alveoli


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to Alveoli: diaphragm

alveolus

 [al-ve´o-lus] (pl. alve´oli) (L.)
a little hollow, as the socket of a tooth, a follicle of an acinous gland, or a pulmonary alveolus. adj., adj alve´olar.
dental alveoli the cavities or sockets of either jaw, in which the roots of the teeth are embedded.
pulmonary alveoli small outpouchings along the walls of the alveolar sacs and alveolar ducts; through them, gas exchange takes place between alveolar gas and pulmonary capillary blood.

al·ve·o·li

(al-vē'ō-lī),
Plural of alveolus.

alveoli

[al·vē′ō·lī]
See alveolus.

al·ve·o·li

(al-vē'ō-lī)
Plural of alveolus.

alveolus

(al-ve'o-lus ) (al-ve'o-li?, -le?) plural.alveoli [L. alveolus, small hollow, cavity]
1. A small hollow.
2. The bony socket of a tooth.
Enlarge picture
ALVEOLUS OF LUNGS
3. An air sac of the lungs. See: illustration
4. Any of the honeycombed depressions of the gastric mucous membrane.
5. A follicle of a racemose gland.

alveoli of the breast

Glandular structures arranged in clusters throughout the breast and the site of milk synthesis.

alveolus dentalis

A tooth socket.

pulmonary alveolus

Any of the terminal epithelial sacs of an alveolar duct where gases are exchanged in respiration. It is informally called an “air sac.” Synonym: alveolar sac

alveoli pulmonis

Pulmonary alveoli.

Alveoli

Small air sacs or cavities in the lung that give the tissue a honeycomb appearance and expand its surface area for the exchange of oxygen and carbon dioxide.

alveoli

terminal dilatations of terminal branches of bronchioles; the site of gaseous exchange (oxygen in, carbon dioxide out)
References in periodicals archive ?
Bronchiectasis--the alveoli are swollen, the cilia destroyed and mucus cannot be removed.
The mechanisms involving spontaneous pneumothorax associated with malignancy may be due to rupture into the pleural space of dilated alveoli distal to a stenosis, bronchopleural fistula, or associated emphysematous lung disease.
Alveoli (singular-alveolus)--The alveolus is a thin walled sac, at the very end of the airway, where gas exchange takes place.
Air moves through the walls of the alveoli and into the capillaries which take the oxygen and carry it to your heart.
Cancer cells lining the alveoli pick up the virus and begin expressing p53; the excess fluid is absorbed by the surrounding tissue.
The dorsal surface slopes anteriorly, and three alveoli are preserved.
The site of initial infection is usually the alveoli -- the balloonlike sacs at the ends of the small air passages in the lungs known as bronchioles.
It has been estimated that our lungs contain almost 1500 miles of airways and over 300 million alveoli.
The final destination for inhaled air is the network of about 3 million air sacs, called alveoli, located at the ends of the lungs' air passages.
more alveoli, the tiny air sacs in lungs through which oxygen enters the blood
This concept of branching tubes ultimately arriving at the gas-exchange surface (alveoli) is illustrated in the diagram of the two lungs in the inset, showing the small air passages that finally reach the alveoli, where gas exchange takes place (the absorption of oxygen and the elimination of carbon dioxide, a by-product of metabolism).