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Respiratory system PDF Notes Free Download for Pharmacy students.
Functions of The Respiratory System
To allow gases from the environment to enter the bronchial tree through inspiration by expanding the thoracic volume.
To allow gas exchange to occur at the respiratory membrane, so that oxygen diffuses into the blood while carbon dioxide diffuses into the bronchial tree.
To permit gases in the lungs to be eliminated through expiration by decreasing the thoracic volume.