At the end of normal expiration, a person's lung volume is at his alveolar pressure of 0 mm Hg and the intrapleural pressure is mm Hg. He inhales 800 ml of air. At the end of inspiration, the alveolar pressure is = mm Hg and the intrapleural pressure is mm Hg. The compliance of his lungs is 800 ml/mm Hg. None of the above.
A person's alveolar membranes are slightly thickened resulting in a modest decrease in gas diffusion. At rest, the most likely effect on arterial Paz is none because diffusion rates in pulmonary capillaries are rapid. Decreased arterial Paz and increased arterial Pcz changes will be less evident during exercise than at rest. All of the above.
Which of the following have higher values in systemic venous blood than in systemic arterial blood: Plasma Pco2, Erythrocyte Plasma bicarbonate, Plasma H+ concentration. All of the above.
18. The maximum flow rate during most of a forced expiration is normally limited by turbulence in the trachea, rate of contraction of the respiratory muscles, action of the diaphragm, compression of the airways, and abdominal muscles.