PHGY 210 Lecture Notes - Lecture 7: Pulmonary Artery, Intercostal Muscle, Bronchial Circulation
14 May 2012
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Document Summary
Structure of the lungs and chest wall: function of respiration. The primary function of respiration is gas exchange. In mammals, gas exchange occurs in the lungs. During inspiration, air rich in o2 is inhaled in the lungs. During expiration, co2 produced during the oxidative processes of the body is exhaled from the lungs. Therefore, both the cardiovascular system and the respiratory system are involved with supplying body cells with o2 and eliminating their waste product, co2: the respiratory tract know the anatomy. The lung on the right hand side has 3 lobes, and 2 lobes on the left hand side. Therefore 3 lobar bronchi on the right side and 2 on the left. Space between the lungs and the ribcage= the pleural space. Very small and containts a very small amount of water (no air). Pleural space feels like a fist punching into a fluid filled balloon.
