1) The walls of the following structures are all supported by cartilage except for one of them. Which one? a) A. bronchioles b) B. trachea c) C. bronchi d) D. larynx 2) What are the immune cells in the alveoli? a) A. Macrophages b) B. Pneumocytes c) C. Surfactant d) D. Goblet cells 3) The substance that is produced by the alveoli to prevent lung collapse a) A. Mucus b) B. Water & Mucus c) C. Surfactant d) D. None of the above 4) What is the “cribriform plate”? a) A. That part of the nose with three folds of tissue called conchae. b) B. The structure that separates the nose from the nasopharynx. c) C. Part of the ethmoid bone through which olfactory nerves pass. d) D. The nose structure through which air is warmed and humidified as it passes. 5) The alveolar epithelium of the lungs is: a) A. Ciliated squamous b) B. Nonciliated squamous c) C. Nonciliated columnar d) D. Ciliated columnar 6) _______ acts as the air conditioner. a) A. Nasal chamber b) B. Larynx c) C. Pharynx d) D. Lungs 7) Which statement may be used to define a bronchiole? a) A. They are the airways that branch from the left and right primary bronchi. b) B. They are kept open by “C” shaped rings of cartilage. c) C. Their walls have supporting cartilage between smooth muscle. d) D. Their walls contain smooth muscle but no cartilage. 8) ________ is the process of air following into the lungs during inspiration (inhalation) and out of the lungs during expiration (exhalation). a) A. Cellular respiration b) B. External respiration c) C. Internal respiration d) D. Pulmonary ventilation 9) When 1500 ml of air in the lungs, it is called the _________. a) A. Residual Volume b) B. Inspiratory reserve volume c) C. Vital capacity d) D. Tidal volume 10) Which phrase is used to describe the volume of air inspired and expired with a normal breath? a) A. Total lung capacity b) B. Forced vital capacity c) C. Tidal volume d) D. Residual volume

RESPIRATORY SYSTEM

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