PHYSIOL 201 Lecture Notes - Lecture 10: Lung Volumes, Vital Capacity, Respiratory Tract
8 Mar 2019
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Lecture 9: understanding lung volumes and alveolar ventilation (24-40: ventilation is general just means moving air in and out of the lungs, when you take a breath in, lung volume increases, when you breathe out, lung volume decreases. Get up to maximum lung volume and blow out as much as possible. Effect of breathing pattern on alveolar ventilation: when we think about breathing and we breathe in 500ml, not all that 500ml is available for gas exchange. Increasing both depth and frequency is the most effective way to increase alveolar ventilation: yes, up to a point you can increase both depth and frequency (example c) Interstitial fluid has high pco2 and low po2 (opposite of gas exchange in tissues) Questions to think about: knowing that arterial po2= 100mmhg and arterial. Which of the following is/are true regarding the alveolar and blood gases: the amount of o2 dissolved in the blood is given by the po2 value, true.
