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Topic: Terminal bronchioles

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	Pneumonia: Encyclopedia of Medicine
		Each bronchus divides into tubes of smaller and smaller diameter, finally ending in the terminal bronchioles.
		The air sacs of the lung, in which oxygen-carbon dioxide exchange actually takes place, are clustered at the ends of the bronchioles like the leaves of a tree.
		The tissue of the lung which serves only a supportive role for the bronchi, bronchioles, and alveoli is called the lung parenchyma.
	health.enotes.com /medicine-encyclopedia/pneumonia (2258 words)

	Nitrogen pentoxide (PIM 283) (Site not responding. Last check: 2007-11-01)
		Nitrogen oxides are largely absorbed by and react with pulmonary alveolar structures and terminal respiratory bronchioles.
		Fibrotic destruction of terminal bronchioles (bronchiolitis obliterans) occurs as a late complication (Ellenhorn & Barceloux, 1988).
		Milne JEH (1969) Nitrogen dioxide inhalation and bronchiolitis obliterans.
	www.inchem.org /documents/pims/chemical/pimg017.htm (2621 words)

	Pneumonia - Definition, Description, Demographics, Causes and symptoms, Diagnosis, Treatment, Prognosis, Prevention
		The alveoli, in which oxygen and carbon dioxide are exchanged, are clustered at the ends of the bronchioles.
		Lung stroma, the tissue of the lung, serves a supportive role for the bronchi, bronchioles, and alveoli.
		The main function of the respiratory system is to help distribute oxygen, the most important energy source for the body's cells.
	www.healthofchildren.com /P/Pneumonia.html (3076 words)

	Phosgene (CASRN 75-44-5), IRIS, Environmental Protection Agency
		Histologic examination of animals exposed for 4 weeks revealed changes of the bronchiolar regions, with a small but apparent thickening and mild inflammation seen at 0.1 ppm that progressed in severity with concentration to a severe inflamation and thickening of the terminal bronchiolar regions and alveolar walls at 1 ppm.
		An increase in collagen staining was seen in the 0.2 and 1 ppm animals, although no elevation of total hydroxyproline, a measure of collagen deposition, was observed.
		Histology of the lungs after 17 days of exposure to 0.25 ppm phosgene revealed moderate multi focal mononuclear cell accumulations in the walls of the terminal bronchioles and a minimal type II cell hyperplasia; lesions in the groups exposed to 0.125 ppm were minimal.
	www.epa.gov /iris/subst/0487.htm (5695 words)

	Courses:Pulmonary Drug Delivery/Introduction - Pharmpedia
		Throughout the past several years, rapid onset of action and higher efficiency has been responsible for the success of pulmonary delivery system for symptomatic relief in treatment of asthma and chronic obstructive pulmonary disease (COPD).
		The principle behind pulmonary drug delivery is aerosolization, i.e., reduction in particle size of drug compound delivered to bronchioles and alveoli.
		It is a series of bifurcating tubes which begin at the trachea, divide into the main bronchi, the conducting bronchioles and conclude in the terminal bronchioles and the alveoli, as shown in figure 2 The available delivery systems include metered dose inhalers (MDIs), dry powder inhalers (DPIs) and nebulizers.
	www.pharmpedia.com /Courses:Pulmonary_Drug_Delivery/Introduction (390 words)

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