{"id":211,"date":"2016-04-27T16:49:37","date_gmt":"2016-04-27T16:49:37","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/contemporaryhealthissuesxpierce\/?post_type=chapter&p=211"},"modified":"2016-07-04T20:15:30","modified_gmt":"2016-07-04T20:15:30","slug":"alveoli-2","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/contemporaryhealthissuesxpierce\/chapter\/alveoli-2\/","title":{"raw":"Alveoli","rendered":"Alveoli"},"content":{"raw":"

Alveoli<\/h2>\r\n

An alveolar duct is a tube composed of smooth muscle and connective tissue, which opens into a cluster of alveoli. An alveolus is one of the many small, grape-like sacs that are attached to the alveolar ducts.<\/p>\r\n

An alveolar sac is a cluster of many individual alveoli that are responsible for gas exchange. An alveolus is approximately 200 mm in diameter with elastic walls that allow the alveolus to stretch during air intake, which greatly increases the surface area available for gas exchange. Alveoli are connected to their neighbors by alveolar pores, which help maintain equal air pressure throughout the alveoli and lung (Figure<\/a>).<\/p>\r\n\r\n

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Structures of the Respiratory Zone<\/div>\r\n\"This<\/span>\r\n\r\n(a) The alveolus is responsible for gas exchange. (b) A micrograph shows the alveolar structures within lung tissue. LM \u00d7 178. (Micrograph provided by the Regents of University of Michigan Medical School \u00a9 2012)\r\n\r\n<\/figure>","rendered":"

Alveoli<\/h2>\n

An alveolar duct is a tube composed of smooth muscle and connective tissue, which opens into a cluster of alveoli. An alveolus is one of the many small, grape-like sacs that are attached to the alveolar ducts.<\/p>\n

An alveolar sac is a cluster of many individual alveoli that are responsible for gas exchange. An alveolus is approximately 200 mm in diameter with elastic walls that allow the alveolus to stretch during air intake, which greatly increases the surface area available for gas exchange. Alveoli are connected to their neighbors by alveolar pores, which help maintain equal air pressure throughout the alveoli and lung (Figure<\/a>).<\/p>\n

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Structures of the Respiratory Zone<\/div>\n

\"This<\/span><\/p>\n

(a) The alveolus is responsible for gas exchange. (b) A micrograph shows the alveolar structures within lung tissue. LM \u00d7 178. (Micrograph provided by the Regents of University of Michigan Medical School \u00a9 2012)<\/p>\n<\/figure>\n\n\t\t\t

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Candela Citations<\/h3>\n\t\t\t\t\t
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