HTHSCI 1CC6 Lecture Notes - Lecture 2: Thoracic Cavity, Costal Cartilage, Lung Volumes
25 Oct 2018
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Consists of inspiration and expiration is a mechanical process that depends on volume changes in the thoracic cavity. Keep in mind: volume changes lead to pressure changes and pressure changes lead to the flow of gases to equalize the pressure. Distributing prohibited | downloaded by arsen terzian (arsen98@gmail. com) Page 826 figure 22. 16: changes in intrapulmonary and intrapleural pressures during inspiration and expiration: notice that normal atmospheric pressure (760 mm hg) is given a value of 0 on the scale lomoar cpsd| 2151316. Distributing prohibited | downloaded by arsen terzian (arsen98@gmail. com) lomoar cpsd| 2151316: lung volumes: remember those definitions and what they mean. Tidal volume (tv) is the volume of air (about 500ml) that moves into and out of the lungs with each breath, during normal quiet breathing. Inspiratory reserve volume (irv) is the amount of air that can be inspired forcibly beyond the tidal volume (2100 to 3200 ml).
