oi me above QUESTION 12 Which of the following is NOT true of the alveoli? O A. gas exchanges occur by simple diffusion OB. are composed of simple columnar epithelium O C. each have a network of capillaires surrounding them OD. None of the above O E. have Type Il cells embedded within the epithelium Aariab QUESTION 8 What is the primary function of pulmonary surfactant? A. helps prevent the alveoli from collapsing by lubricating the alveolar membranes during exhalation B. is secreted in the nasal passages c. phagocytizes small particulates D.replaces mucus is the alveoli E. none of the above QUESTION 9 QUESTION 3 Which of the following is TRUE of asthma? O A. all of the above O B. can be relieved with bronchodilators OC. causes dyspnea OD. may be caused by allergens or irritants E. is due to acute bronchconstriction