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Thorax and Lungs

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Term
Definition
cough   stimulation of afferent vagal endings that helps to clear the airway of extraneous material by producing a sudden, forceful, and noisy expulsion or air from the lungs  
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crepitus   subcutaneous emphysema; beads of ari escape from the lungs and create a crackling sound when palpated  
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anterior axillary line   line vertical line drawn from the origin of the front armpit fold along the anterolateral aspect of the thorax  
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bronchophony   voice sound test in which the pt says the words "ninety-nine" or "one, two, three" to determine if the lung is filled with air, fluid, or a solid  
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eupnea   normal breathing; respirations are 12-20 per minute for the resting adult  
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mediastinum   area between the lungs; also called interpleural space  
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angle of louis   (manubriosternal junction or sternal angle) junction of the manubrium and the sternum  
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midsternal line   vertical line drawn from the midpoint of the sternum  
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voice sounds   technique used to assess wheter the lungs are filled with air, fluid, or a solid  
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midspinal (or vertebral) line   vertical line drawn from midpoint of spinous processes  
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posterior axillary line   vertical line drawn from the rear armpit fold  
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tactile (or vocal) fremitus   palpable vibration of the chest wall that is produced by the spoken word  
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visceral pleura   lining of the external surface of the lungs  
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alveoli (of the lung)   smallest functional units of the resp system; where gas exchange occurs  
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bronchial (or tubular) breath sound   breath sound that is high in pitch and loud in intensity and that is heard best over the trachea; has a blowing/hollow quality; heard longer on expiration than inspiration  
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apnea   lack of respirations for 10 or more seconds  
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vertebrosternal (or true) ribs   rib pairs 1-7; articulate via the costal cartilage to the sternum  
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suprasternal notch   visible and palpable depression in the midsternal line that lies superior to the manubrium  
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bradypnea   resp rate under 12 bpm in a resting adult  
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costal angle   angle formed by the intersection of the costal margins at the sternum  
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vocal fremitus   see tactile fremitus  
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pectus carinatum   abnormal thoracic configuration in which ther is a marked protrusion of the sternum; known as pigeon chest  
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rhonchal fremitus   coarse palpable vibration produced by the passage of air through thick exudate in large bronchi or the trachea  
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pleura   serous sac that encases the lung  
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pleural friction fremitus   palpable grating that feels more pronounced on inspiration when there is an inflammatory process between the visceral and parietal pleuras  
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intercostal space   area between ribs  
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diaphragmatic excursion   technique used to assess the pt's depth of ventilation  
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scapular line   vertical line drawn from the inferior angle of the shoulder blade  
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sternal angle   see angle of louis  
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kussmaul's respirations   extreme increased rate and depth of respirations, as in diabetic ketoacidosis  
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xiphoid process   cartilaginous protrusion at the base of the sternum; does not articulate with the ribs  
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fine crackle   discontinuous adventitious breath sound that is caused by air passing through moisture in small airways that suddenly reinflate; resembles a high-pitched crackling sound  
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adventitious breath sounds   breath sound that is superimposed on normal breath sounds  
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agonal respirations   irregularly irregular respirations that signal impending death  
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air trapping   abnormal respiratory pattern with rapid, shallow respirations and forced expirations; the lungs hav insufficient time to fully exhale and air becomes trapped, leading to overexpansion of the lungs  
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apex (of the lung)   top of the lung  
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apneustic respirations   prolonged gasping on inspiration followed by a very short, inefficient pause that can last 30-60seconds  
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barrel chest   abnormal thoracic configuration in which the ratio of the anteroposterior diameter to the transverse diameter of the chest is approximately 1:1  
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base (of the lung)   bottom of the lung  
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Biot's Respirations    
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