Explain in detail how the movements of the diaphragm and ribs draw air into the lungs...

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Medical Sciences

Explain in detail how the movements of the diaphragm and ribsdraw air into the lungs during the inhalation phase of therespiratory cycle during quiet breathing. Include in your answerthe effects on intrapleural and intrapulmonary pressures and howthese effects cause air to move into the lungs.

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Muscles involved in quiet respiration Inspiration Diaphragm is the main muscle 75 and external intercostal muscle 25 Expiration It is a passive process Pressure changes during respiration a Intrapleural pressure At the beginning of quiet inspiration it is 25 mm Hg or 5 cm H2O at the base of the lung ie 25 mm Hg less than atmospheric pressure of 760 mm Hg at the end of inspiration it becomes 60 mm Hg Again it returns to 25 mm Hg at See Answer

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