NURS 106 Lecture Notes - Lecture 33: Pulmonary Artery, Cellular Respiration, Pneumothorax
28 Nov 2018
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Document Summary
Must be lower than intrapulmonary pressure . Too much air pressure in the pleural cavity: breathing (pulmonary ventilation) provides alveolar ventilation. Atmospheric pressure (atm): : exchange of oxygen and carbon dioxide between air in the alveoli and blood within the, transport of gases by blood between the lungs and tissue pulmonary arteries. Movement of gases exerts pressure on the container. (defines the relationship between pressure and volume ) Elastic recoil (from elastic tissue) and alveolar surface tension. Similar to arterial resistance in the circulatory system. Factors affecting pulmonary ventilation: pulmonary compliance (pulmonary surfactant, airway resistance , mobility of thoracic cage. Expiratory reserve volume (erv) - normal expiration. Maximal amount of air that can be drawn into the lungs. The maximal amount of air that can drown out of the lungs after. The amount of air that can be inhaled after the end of a normal expiration. Maximum amount of air a person can expel after maximum inhalation (irv)
