alveoli: microscopic air sacs that are surrounded by a rich network of blood
vessels in mammalian
lungs that function in gas exchange; the air sacs are at the end of the
bronchioles.
amino acids: the building blocks of
proteins.
Full article >>>alveoli Tiny, thin-walled, inflatable sacs in the
lungs where
oxygen and carbon dioxide are exchanged.
amensalism A symbiotic relationship in which members of one
population inhibit the growth of another
population without being affected.
Full article >>>Only in the
alveoli does actual gas exchange takes place. There are some 300 million
alveoli in two adult
lungs. These provide a surface area of some 160 m2 (almost equal to the singles area of a tennis court and 80 times the area of our skin!).
Full article >>>alveolus pl.
alveoli(al-vee-oh-lus) [L. dim. of alveus, cavity, hollow]
(1) One of the deadend, multilobed air sacs that constitute the gas exchange surface of the
lungs. (2) One of the milk-
secreting sacs of epithelial
tissue in the
mammary glands.
Full article >>>Gas exchange
Lung AlveoliReferences
W.F. Smith, Foundations of Materials Science and Engieering 3rd ed., McGraw-Hill (2004) ...
Full article >>>The
lungs of
mammals are a rich lattice of
alveoli, which provide an enormous surface area for gas exchange. A network of fine
capillaries allows
transport of blood over the surface of
alveoli.
Full article >>>emphysema An irreversible, obstructive
lung disease in which airways become permanently constricted and
alveoli are damaged or destroyed.
Emulsify To produce small droplets of a liquid.
emulsion A colloidal system in which both phases are liquids.
Full article >>>In
lungs, the narrowed ending of
bronchioles that opens into a cluster of
alveoli.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
Full article >>>In
mammals the paired
lungs are each supplied by a bronchus that divides, treelike, into
bronchioles. Each
bronchiole ends in an
atrium from which arise numerous
alveoli that contact a vast
capillary system.
Full article >>>'"/>