Portage A&P1 Module 2 Exam

PO2 = ? P N = 100 mmHg P CO2 = 150 mmHg = 510 Answer: The partial pressure of oxygen is 510 mmHg The purpose of these cells are the primary immune defense of the alveoli: - answer-Alveolar macrophages Typical respiratory epithelium contains all of the following except which one? - answer-Layers (so it has cilia, tall narrow cells, mucous producing cells, and goblet cells) Which one of the following is not true of the bronchioles? - answer-Bronchioles can contain fossae and mucus Which one of the following is not true of the pleurae? - answer-Visceral pleurae cover the diaphragm (so true ones are: the pleurae are membranes that cover surfaces; parietal pleurae cover the surfaces surrounding the lungs; a healthy pleural cavity is nearly empty of air or fluid) Which one of the following is true of the respiratory physiology calculations? - answer-Total Lung Capacity (TLC) = VC + RV (also vc = irv + erv + tv) Why would warming air be beneficial to gas exchange? - answer-It would expand the air to make it more available for gas exchange.