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Breathing consists of two phases, inspiration and expiration. During inspiration, the diaphragm and the intercostal muscles contract. The diaphragm moves downwards increasing the volume of the thoracic (chest) cavity, and the intercostal muscles pull the ribs up expanding the rib cage and further increasing this volume.
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www.stemnet.nf.ca/~dpower/resp/exchange.htm
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Human Anatomy question: Difference between inspiration and expiration? This occurs within the respiratory system. During inpiration, the intercostal muscles contract, the diaphragm descends, and the rib ... Inspiration vs expiration? About inspiration and expiration? Is inspiration equal to expiration?
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wiki.answers.com/Q/Difference_between_inspiration_and_e...
wiki.answers.com/Q/Difference_between_inspiration_and_expiration
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In general, inspiration requires more effort than expiration as the lungs have a natural tendency to shrink back to their normal size, especially as the pressure inside the lungs is greater than the atmospheric. In quiet breathing, that is ...
http://wiki.answers.com/Q/Which_is_more_difficult_inspi...
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The Medscape Journal ... Allergy & Clinical Immunology ... Diabetes & Endocrinology...
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www.medscape.com/medline/abstract/5401752
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Inspiration and active expiration are commonly viewed as antagonistic phases of a unitary oscillator that generates respiratory rhythm. ... We hypothesize that inspiration and expiration are generated by coupled, anatomically separate rhythm generators, one generating active expiration located close to the facial nucleus in...
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www.medscape.com/medline/abstract/16293645
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Meaning of Inspiration: For the meaning of inspiration as in being inspired: answers # 1-2-3 . 1) a.Stimulation of the mind or emotions to a high level of feeling or activity. b.The condition of being so stimulated. 2.An agency, such as a p...
http://answers.yahoo.com/question/index?qid=20091105182...
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Asthma Basics (5); What do I need to know and do to improve my asthma? Asthma is a complicated, chronic and often often frustrating disease. Here you will learn about asthma basics that will make managing your asthma or your child's asthma easier. Find out what asthma is, ... Treatment Options (5); The treatment options...
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lungdiseases.about.com/od/glossaryofterms/g/hypoxia.htm
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1 Inspiration begins as... ... The result of the process of inspiration is... ... Home > Chapter 23 > Animation: Alveolar Pressure Changes During Inspiration and Expiration...
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highered.mcgraw-hill.com/sites/0072507470/student_view0...
highered.mcgraw-hill.com/sites/0072507470/student_view0/chapter23/animation__alveolar_pressure_changes_during_inspiration_and_expiration.html
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Thoracic movement during inspiration and expiration ... Some authors classify the quadratus lumborum and latissimus dorsi as secondary muscles of expiration, but the reasoning is not as clear as with the muscles listed in the table.
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moon.ouhsc.edu/dthompso/namics/respire.htm
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