Resp Mechanics Lab 1

respiratory Mechanics 1 Note there is an error in your lab book The starting universal gas constant for the flow subway system diameter should be 5mm in each experiment and NOT 6mm. Use your information processing system link to ADAm for this part of this weeks lab. You are also responsible for the PowerPhys lab report. measuring rod Normal Respiratory Volumes 1) Calculate the pure respiratory volume using the tidal volume and breaths per minute (pump rate). 2) Define the following terms a. Respiration- The act of breathing, inhaling and exhaling. b. Alveoli- located at the ends of the bronchiole, bloodline sacs in the lungs where the exchange of atomic number 8 and carbon dioxide takes place. . Diaphragm- the partition separating the thoraciccavity from the abdominal cavity. http//dictionary. reference. com/browse/diaphragm In the following knock back are the data calculated during a restricted air flow test. Use these data to settlement the following questions. FEV1 as % of Vital Capacity Radius FEV1 Vital Capacity FEV1 (%) 5 3541 4791 73. 9 4. 5 2503 3143 73. 3 4 1422 1962 72. 4 3. 5 822 1150 71. 4 3 436 621 70. 2 3) What affect does reducing the radius of the air flow tube on respiratory volumes? Reducing radius of the air flow tube decreases respiratory volume.Effects of Surfactant on Respiratory Volumes 4) How does wetter affect the tidal volume? It minimizes fall out tensity in the alveoli which makes it easier for the alveoli to increase surface area for gas exchange. 5) How does addition of surfactant affect the total air flow into the lungs? It affects the total airflow because it allows the air flow into the lungs to be increased because resistance is lowered. 6) Why does surfactant have the affect that it does on total air flow? It minimizes the tension at the surface, which allows the alveoli to increase surface area for gas exchangewe can breathe more and easily. ) Emphysema is a lung condition that results in a(n) in the tidal volume of the lungs. d. Emphysema decreases tidal volume of the lungs. Effects of Thoracic Cavity pierce 8) What happens in pneumothorax? Pneumothorax is also called a collapsed lung. A collapsed lung can occur for a number of reasons. It could be a result of an injury, a medical condition, or it can happen without reason. It occurs when there is a build up of air around the lungs, and this causes pressure, which keeps the lung from expanding to its normal capacity when breathing.