Q1. The human respiratory system is critical to immediate survival. The key for understanding respiration function lies

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Q1 The Human Respiratory System Is Critical To Immediate Survival The Key For Understanding Respiration Function Lies 1 (127.09 KiB) Viewed 11 times

Q1. The human respiratory system is critical to immediate survival. The key for understanding respiration function lies in the laws of gases. List two functions of components of the respiratory system. (a) (b) (c) (d) [25 marks] [4 marks] State and define the laws that show the effect of temperature and pressure involved in respiration function. [12 marks] Given a 2-L container of oxygen gas under a pressure of 740 mmHg, calculate the volume of the same mass of gas at a standard pressure. [3 marks] A spirometer is an instrument used to measure respired volumes and flows (i.e. spirometry). Figure Q1 shows a flow-volume loop, which graphically depicts the rate of airflow on the Y-axis and the total volume inspired or expired on the X-axis. Describe the following [6 Marks] (i) (ii) (iii) (iv) Process A Process B FVC FEVI Process A Process B 10₁ PEF FEF 25% FEF 6 FEF 50%4 2- 75% 0- FIF 25% FIF 75% 6- FIF 50% 8. 10- Flow (L/sec) N. 2 Vol (1) 6 FEV₁ FEV₁ - FVC 1/2 FEV; Figure Q1: A flow-volume loop graph from a spirometer.