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alveolus |
Also found in: Dictionary/thesaurus, Encyclopedia, Hutchinson | 0.01 sec. |
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alveolus /al·ve·o·lus/ (al-ve´o-lus) pl. alve´oli [L.] a small saclike dilatation; see also acinus. dental alveolus one of the cavities or sockets of the jaw, in which the roots of the teeth are embedded. pulmonary alveoli small outpocketings of the alveolar ducts and sacs and terminal bronchioles through whose walls the exchange of carbon dioxide and oxygen takes place between the alveolar air and capillary blood.
Alveolus (plural alveoli) The terminal air sacs of the lungs where gas exchange occurs. Mentioned in: Surfactant alveolus 1 a small outpouching along the walls of the alveolar sacs through which gas exchange between alveolar air and pulmonary capillary blood takes place. Also called acinus, pulmonary alveolus. 2 a tooth socket. See also dental alveolus. alveolar, adj. alveolus (alvē´ n 1. an air sac of the lungs formed by terminal dilations of the bronchioles. n 2. the socket in the bone in which a tooth is attached by means of the periodontal ligament. alveolus pl. alveoli. 1. a small cavity. 2. one of the thousands of tiny sacs borne on the terminal parts of the bronchial tree. 3. a tooth socket. 4. the dilated saclike part of the secretory unit of an alveolar gland such as a lactating mammary gland. See also alveolar. mammary alveolus because its epithelia produce milk the alveolus is the basic functioning unit of the lactating mammary gland. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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