BIO 202 Chapter 17: Respiratory Mechanics
8 Aug 2016
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Document Summary
Respiratory system consists of two separate components: muscle driven pump musculoskeletal structure of thorax, moist exchange surface. Primary fxns of the respiratory system are: exchange of gases between the atmosphere and the blood, homeostatic regulation of ph, ph can be altered by retaining or excreting co2, protection from inhaled pathogens and irritating substances, vocalization. Bulk flow of air follow many of the same principles as the bulk flow of blood. Flow takes place from regions of higher pressure to lower pressure: muscular pump creates pressure gradients, resistance to air flow is influence by the diameter of the tubes through which the air is flowing. Respiratory system consists of structures in ventilation and gas exchange: conducting system of passages, or airways that lead from external to exchange surface of lungs, alveoli is a series of interconnected sacs and their associated pulmonary capillaries a.
