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Respiratory System

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Term
Definition
adenoid hypertrophy   Increased development  
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adenoidectomy   Removal of the adenoids  
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adenoids   Small masses of lymphatic tissue in the throat, close to the nasal (nose) passageway.  
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alveolar   Pertaining to the alveolus  
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alveolus (plural: alveoli)   An individualized section of an air sac in the lung.  
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anosmia   Loss of the sense of smell.  
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anthracosis   Abnormal condition of coal dust in the lungs; black lung disease.  
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apex of the lung   Uppermost portion of the lung.  
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apical   Pertaining to the tip of an organ.  
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apnea   Without breathing.  
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asbestosis   Abnormal condition of asbestos fiber particles in the lungs.  
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asphyxia   Deficient oxygen and increased carbon dioxide in the bloodstream.  
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asthma   Chronic inflammation disorder characterized by airway obstruction and caused by bronchial edema, bronchoconstriction, and increased mucus production.  
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atelectasis   Collapsed lung.  
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auscultation   Listening for sounds in the chest and abdomen using a stethoscope.  
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bacilli   Rod-shaped bacteria that are the cause of tuberculosis.  
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base of the lung   The lower portion of the lung.  
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bronchial alveolar lavage   Irrigation or washing of a bronchus by injecting fluid through a bronchoscope and then removing it to analyze the content.  
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bronchiectasis   Abnormal widening bronchial tubes.  
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bronchioles   Small bronchial tubes.  
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bronchiolitis   Inflammation of the bronchiole.  
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bronchodilator   Agent that dilates (widens) blood vessels and relieves bronchospasm.  
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bronchoscopy   Visual examination of the bronchial tubes using an endoscope or bronchoscope.  
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bronchospasm   Involuntary muscular contractions in bronchial tubes leading to the narrowing of the bronchi.  
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bronchus   Branch of the trachea that leads toward the air sacs of the lung.  
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carbon dioxide   Gas produced in tissue cells when oxygen and food combine.  
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chest tomograms   Series of x-ray images that reveal the chest in-depth (layers or sections of the lung).  
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chronic bronchitis   Inflammation of the bronchi persisting over a long period of time.  
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chronic obstructive pulmonary disease   Lung and bronchial tube conditions that block and damage airways and persist over a long period of time. Examples are chronic bronchitis and emphysema.  
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cilia   Thin hairs that line the nasal passageway and tubes of the respiratory tract.  
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computed tomography of the chest   Computer generated x-ray images showing thoracic structures in cross-section.  
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cor pulmonale   Enlargement of the right side of the heart due to lung disease.  
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croup   Acute viral infection  
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cyanosis   Abnormal condition of bluish coloration of the skin.  
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cystic fibrosis   Inherited disorder of exocrine glands resulting in mucous secretions that do drain normally.  
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diaphragm   Muscle that separates the chest and abdomen; aids breathing.  
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diphtheria   Acute infection of the throat caused by diphtheria bacteria; characterized by formation of a thick membrane that obstructs the throat and breathing.  
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dysphonia   Abnormal voice or sound produced by speaking.  
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dyspnea   Difficult breathing.  
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emphysema   Hyperinflation of air sacs with destruction of alveolar walls.  
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empyema   Pus in the pleural space (cavity) surrounding the lung.  
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endotracheal intubation   Tube is place through the mouth and throat into the trachea to establish an airway.  
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epiglottis   Thin piece of cartilage that covers the entrance to the voice box and windpipe when a person is swallowing.  
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epiglottitis   Inflammation of the epiglottis.  
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epistaxis   Nosebleed.  
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expectoration   Coughing up mucus or sputum from the throat and respiratory tract.  
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expiration   Process of breathing out or exhalation.  
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exudate   Fluid, cells, or other substances that slowly leave cells or capillaries through pores or breaks in cell membranes.  
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glottis   Slit-like opening between the vocal folds of the larynx.  
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hemoptysis   Spitting up blood form the respiratory tract.  
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hemothorax   Blood in the chest (pleural cavity) surrounding the lungs.  
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hilar   Pertaining to the hilum.  
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hilum of the lung   Midline region where the bronchi, blood vessels, and nerves enter and exit the lungs.  
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hydrothorax   Water or fluid that accumulates in the pleural space surrounding the lungs.  
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hypercapnia   Increased levels of carbon dioxide in the bloodstream.  
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hypernea   Increase in breathing rate.  
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hypoxia   Deficiency of oxygen in tissues.  
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infiltrate   fluid-filled area within the lungs as seen on a chest x-ray or CT scan.  
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inspiration   Act of breathing in or inhalation.  
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laryngeal   Pertaining to the larynx or voice box.  
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laryngitis   Inflammation of the larynx or voice box.  
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laryngoscopy   Endoscopic visual examination of the larynx.  
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laryngospasm   Involuntary contraction of muscles surrounding the voice box.  
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larynx   Voice box.  
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lobectomy   Removal of a lobe or section of an organ, such as the lung.  
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lung biopsy   Surgical removal of lung tissue followed by microscopic examination of cells.  
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lung cancer   Malignant tumor arising from the lungs and bronchial tubes.  
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magnetic resonance imaging of the chest   Magnetic waves are used to produce images of the chest in all three planes of the body.  
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mediastinoscopy   Endoscopic visual examination of the mediastinum.  
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mediastinum   Part of the thoracic (chest) cavity between the lungs.  
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mesothelioma   Rare malignant tumor arising in the pleura and associated with asbestos exposure.  
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nasogastric intubation   Placement of a tube through the nose into the stomach.  
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obstructive lung disease   Narrowed airways result in resistance to airflow during breathing. Examples are asthma, bronchiectasis, COPD, and cystic fibrosis.  
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orthopnea   Breathing is only comfortable when a patient is in an upright position.  
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oxygen   Gas inhaled and entering the bloodstream through the lungs; in makes up 21 percent of the air.  
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palatine tonsil   One of a pair of almond-shaped masses of lymphatic tissue at the back of the mouth (oral pharynx).  
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palliative   Relieving symptoms, but not curative.  
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paranasal sinus   One of a pair of air cavities in the bones near the nose.  
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parietal pleura   Outer layer of the pleura lying closest to the chest wall.  
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paroxysmal   Pertaining to sudden occurrence.  
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percussion   Tapping on the surface to determine the underlying structure.  
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pertussis   Whooping cough; bacterial infection of the throat, larynx, and trachea.  
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pharyngeal   Pertaining to the throat or pharynx.  
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pharynx   Throat.  
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phrenic nerve   Carries impulses to the diaphragm from the brain.  
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pleura   Double-folded membrane surrounding each lung.  
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pleural cavity   Space between the pleura surrounding each lung.  
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pleural effusion   Collection of fluid in the pleural cavity.  
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pleural rub   Scratchy sound produced by inflamed or irritated pleural surfaces rubbing against each other.  
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pleurisy   Inflammation of the pleura; pleuritis.  
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pleurodynia   Pain associated with the pleura.  
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pneumoconiosis   Abnormal condition of dust in the lungs.  
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pneumonectomy   Removal of a lung.  
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pneumonia   Acute inflammation and infection of the alveoli, which fill with pus, and products of inflammation.  
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pneumothorax   Collection of air or gas in the pleural cavity between the pleura and surrounding the lungs.  
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positron emission tomography of the lung   Radioactive substance is injected into a patient and the images reveal the metabolic activity in the lung for diagnosis of malignant tumors.  
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pulmonary   Pertaining to the lungs.  
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pulmonary abscess   Collection of pus in the lungs.  
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pulmonary edema   Collection of fluid in the air sacs and bronchioles of the lung.  
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pulmonary embolism   Clot or material from a distant vein that blocks a blood vessel in the lung.  
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pulmonary fibrosis   Formation of scar tissue in the connective tissue of the lung.  
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pulmonary function test   Tests that measure the ventilation (breathing) mechanics of the lung.  
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pulmonary infarction   Area of dead tissue in the lung.  
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pulmonary parenchyma   Essential parts of the lungs responsible for respiration; bronchioles and alveoli.  
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purulent   Pus-filled; forming or containing pus.  
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pyothorax   Pus collection in the pleural cavity.  
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rales   Abnormal, fine, crackling sounds heard on the auscultaion where there is fluid in the alveoli.  
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respiration   Exchange of gases (oxygen and carbon dioxide) at the lung capillaries (external respiration) and at the tissue capillaries (internal respiration).  
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restrictive lung disease   A condition in which lung expansion is limited by diseases that affect the chest wall, pleura or lung tissue itself. Examples are pulmonary fibrosis, radiation damage, and pneumoconiosis.  
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rhinoplasty   Surgical repair of the nose.  
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rhinorrhea   Discharge of mucus from the nose.  
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rhonchi   Loud, rumbling sounds heard of auscultation of bronchi that are obstructed by sputum.  
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sarcoidosis   Chronic inflammatory disease of unknown cause in which small nodules or tubercles develop in lungs, lymph nodes, and other organs.  
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silicosis   Silica glass dust collects in the lungs; a type of pneumoconiosis.  
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sinusitis   Inflammation of paranasal sinuses.  
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spirometer   An instrument to measure breathing.  
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sputum   Material expelled from the chest by coughing or by clearing the throat phlegm.  
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sputum culture   Sputum is collected and placed in a growth medium to analyze the type of microorganisms that may be present.  
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stridor   Strained, high pitched noisy breathing associated with obstruction of the larynx or trachea.  
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tachypnea   Excessively fast breathing.  
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thoracentesis   Surgical puncture to remove fluid build up from the chest.  
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thoracic   Pertaining to the chest.  
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thoracoscopy   Visual examination of the chest using small incision and an endoscope.  
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thoracotomy   Incision of the chest.  
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tonsilectomy   Removal of the tonsils.  
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trachea   Windpipe; tubes leading from the larynx (voice box) to the bronchial tubes.  
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tracheal stenosis   Narrowing of the trachea.  
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tracheostomy   New opening of the trachea to the outside of the body.  
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tracheotomy   Incision into the trachea.  
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tube thoracostomy   Chest tube is passed through an opening in the skin of the chest to continuously drain a pleural effusion.  
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tuberculliin test   Determines past or present exposure to tuberculosis based on a positive skin test.  
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tuberculosis   Infectious disease caused by Mycobacterium tuberculosis. Lungs are usually involved but other organs may be affected.  
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ventilation-perfusion scan   Radioactive test of lung ventilation and blood perfusion throughout the lung capillaries (lung scan).  
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visceral pleura   Innermost membrane of the pleura, lying closest to the lung tissue itself.  
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wheeze   Continuous high-pitched whistling sound when air is forced through a narrow space during inspiration or expiration.  
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adenoid/o   adenoids  
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alveol/o   alveolus, air sac  
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bronch/o, bronchi/o   bronchial tube, bronchus  
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bronchiol/o   bronchiole, small bronchus  
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capn/o   carbon dioxide  
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coni/o   dust  
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cyan/o   blue  
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epiglott/o   epiglottis  
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laryng/o   larynx, voice box  
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lob/o   lobe of the lung  
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mediastin/o   mediastinum  
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nas/o   nose  
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orth/o   straight, upright  
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ox/o   oxygen  
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pector/o   chest  
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pharyng/o   pharynx, throat  
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phon/o   voice  
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phren/o   diaphragm  
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pleur/o   pleura  
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pneum/o, pneumon/o   air, lung  
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pulmon/o   lung  
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rhin/o   nose  
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sinus/o   sinus, cavity  
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spir/o   breathing  
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tel/o   complete  
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thorac/o   chest  
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tonsill/o   tonisils  
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trache/o   trachea, windpipe  
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-ema   condition  
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-osmia   smell  
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-pnea   breathing  
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-ptysis   spitting  
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-sphyxia   pulse  
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-thorax   pleural cavity, chest  
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