Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings C h a p t e r 24 The Respiratory System PowerPoint ® Lecture Slides prepared by Agnes Yard and Michael Yard Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings In which pulmonary lobe is the apicoposterior bronchopulmonary segment found? a. inferior lobe of right lung b. superior lobe of left lung c. inferior lobe of left lung d. superior lobe of right lung

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following cartilages is a complete ring whose posterior portion is greatly expanded? a. arytenoid cartilage b. cricoid cartilage c. cuneiform cartilage d. thyroid cartilage

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following structures is not part of the respiratory portion of the respiratory tract? a. alveoli b. respiratory bronchioles c. nasopharynx d. none of the above

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following are known as “extrapulmonary bronchi?” a. segmental bronchi b. lobar bronchi c. left and right primary bronchi d. b and c

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings The horizontal fissure separates which of the following? a. the middle and inferior lobes of the right lung b. the superior and middle lobes of the right lung c. the superior and inferior lobes of the left lung d. the middle and inferior lobes of the left lung

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following structures play a role in the opening and closing of the glottis, and the production of sound? a. thyroid and corniculate cartilages b. arytenoid and cuneiform cartilages c. corniculate and arytenoid cartilages d. cuneiform and corniculate cartilages

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings What is/are the function(s) of alveolar ventilation? a. to prevent the buildup of oxygenated blood in the alveoli b. to ensure a continuous supply of oxygen that keeps pace with absorption by the bloodstream c. to prevent the buildup of carbon dioxide in the alveoli d. b and c

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which layer of the trachea contains mucous glands that communicate with the epithelial surface via numerous secretory ducts? a. mucosa b. submucosa c. lamina propria d. adventitia

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which structure(s) marks the boundary line between the superior nasopharynx and the rest of the pharynx? a. hard palate b. internal nares c. soft palate d. inferior meatus

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following structures supplies air to a single bronchopulmonary segment? a.tertiary bronchus b.secondary bronchus c. primary bronchus d.lobar bronchus

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings The passageway between the oral cavity and the oropharynx is known as the: a.nasopharynx b.glottis c.fauces d.larynx

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings The most important skeletal muscles involved in respiratory movements are which of the following? a.internal intercostal muscles b.diaphragm c.external intercostal muscles d. all of the above

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following is the most inferior part of the pharynx? a. laryngopharynx b. glottis c. oropharynx d. nasopharynx

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following structures is not part of the lower respiratory system? a. pharynx b. larynx c. trachea d. bronchi

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following cells or structures produce(s) surfactant? a. pneumocyte type I cells b.pleura (visceral layer) c.pneumocyte type II cells d.pleura (parietal layer)

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following structures is/are involved during swallowing to prevent food from entering the glottis? a. intrinsic and extrinsic laryngeal ligaments b. vestibular ligaments and vocal folds c. arytenoid and corniculate cartilages d. extrinsic and intrinsic laryngeal musculature

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Air is drawn into the lungs when the volume of the thoracic cavity ________, due to ________ of the diaphragm. a. decreases, contraction b.increases, contraction c. decreases, relaxation d. increases, relaxation

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which tracheal wall can easily change shape during swallowing? a. posterior b. lateral c. anterior d. medial

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Regarding the respiratory defense system, virtually all particles larger than ________ are removed from inspired air in the nasal cavity. a.500 nm (0.50 µm) b.5 µm c.250 nm (0.25 µm) d.10 µm

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Where is the “cardiac notch” found? a. the medial margin of the right lung b. the medial margin of the left lung c. the lateral margin of the left lung d. the lateral margin of the right lung

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following features of the vocal folds is not directly related to the size of the larynx? a. diameter b. length c. tension d. none of the above

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings The respiratory epithelium consists of which of the following tissue types? a.pseudostratified ciliated columnar epithelium b.stratified ciliated cuboidal epithelium c.stratified columnar epithelium d.pseudostratified ciliated squamous epithelium

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings The lining of the trachea consists of respiratory epithelium overlying a layer of loose connective tissue known as which of the following? a. mucosa b. submucosa c. adventitia d. lamina propria

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Which of the following cartilages protects the glottis and the trachea and has/have surfaces that provide sites for the attachment of laryngeal muscles and ligaments? a.corniculate cartilage b.cricoid cartilage c.cuneiform cartilage d. b and c

Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Each adult lung contains approximately how many alveoli? a. 750,000 b. 2 billion c. 150 million d. 500 million