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Alveoli
AlveoliThe sacs in the lungs at the ends of the smallest airways where oxygen is exchanged for carbon dioxide in the blood. RELATED TERMS-------------------------------------- Lungs The main respiratory organs in the chest where blood is oxygenated. Oxygen A chemical element essential for sustaining life. Blood The life-maintaining fluid which is made up of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets; blood circulates through the body's heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues. SIMILAR TERMS-------------------------------------- Alveolar "Pertaining to the alveoli, the tiny air sacs in the lungs. The exchange of oxygen and carbon dioxide takes place in the alveoli which look like cells in a honeycomb. The word comes from the Latin diminutive of ""alveus"" meaning a cavity or hollow = a little cavity or hollow." Alveolar bone The jaw bone that anchors the roots of teeth. Alveolar hydatid disease "Abbreviated AHD. A parasitic disease caused by the larval stage of a microscopic tapeworm Echinococcus multilocularis. AHD is found worldwide, mostly in northern latitudes. in central Europe, Russia, China, Central Asia, Japan, and North America. In North America E. multilocularis is found primarily in the north central region from eastern Montana to central Ohio, as well as in Alaska and Canada. Human cases have been reported in Alaska, the province of Manitoba, and Minnesota. Prevalence among wild foxes and coyotes is high, and may reach over 50% in some areas; however, even in these areas, transmission to humans has been low. Wild foxes, coyotes, and cats get infected when they eat Echinococcus multilocularis larvae in infected rodents, field mice, or voles. Cats are less susceptible than dogs, but because they probably catch and eat rodents more often, may also become infected. Once the animal becomes infected, the tapeworm matures in its intestine, lays eggs, and the infected animal passes eggs in the stool. These tapeworm eggs, which are directly infectious to other animals, are too tiny to see, and will stick to anything with which they come in contact. Coyotes, foxes, dogs, and cats are not harmed by the tapeworm and do not have symptoms of AHD. Alveolar proteinosis See: Pulmonary alveolar proteinosis. Alveolitis Inflammation of the alveoli, the air sacs in the lungs. Alveolus " One of the tiny air sacs located at the very ends of the bronchioles within the lungs where the exchange of oxygen and carbon dioxide takes place. The alveolus looks like a cell in a honeycomb. The word comes from the Latin diminutive of ""alveus"" meaning a cavity or hollow = a little cavity or hollow. The plural of alveolus is alveoli and the adjective is alveolar." PREVIOUS AND NEXT TERMS-------------------------------------- Albumin A water-soluble protein found in milk, egg, muscle, blood and many vegetable tissues and fluids. Aldosteronism A condition resulting when the adrenal glands produce too much of the hormone aldosterone, which regulates fluids and salt in the body. Alimentary Having to do with food or nutrition. The alimentary tract is the digestive tract. Alpha1-antitrypsin deficiency Congenital lack of an enzyme that leads to cirrhosis of the liver and obstructive lung disease. Altitude sickness A potentially fatal illness caused by being at altitudes high enough to reduce the amount of oxygen available to the body. Alveoli Ambulatory Able to walk. Not confined to bed. Androgen Any substance that produces male characteristics. Testosterone and androsterone are natural androgens. Angioma A noncancerous tumor made up of many blood vessels. Anomaly Deviation from normal. Anorchism Congenital absence of both testes. We thank you for using the Medical Glossary to search for Alveoli. If you have a better definition for Alveoli than the one presented here, please let us know by making use of the suggest a term option. This definition of Alveoli may be disputed by other professionals. Our attempt is to provide easy definitions on Alveoli and any other medical topic for the public at large.
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