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Chapter 7: Respiratory System
Chapter 7 terms and definitons
75
Biology
Undergraduate 1
10/28/2014

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Term
alveoli
Definition
tiny air sacs found at the end of respiratory bronchioles where gas exchange occurs.
Term
anoxia
Definition
the absence or nearly complete absence of oxygen from the body's gases, blood, or tissues.
Term
antitussive
Definition
medicine administered to relieve or prevent coughing (cough medicine).
Term
aphonia
Definition
the loss of the ability of the larynx to produce normal speech sounds.
Term
asbestosis
Definition
the form of pneumoconiosis caused by asbestos particles in the lungs
Term
asphyxia
Definition
loss of consciousness that occurs when the body cannot get the oxygen it needs to function. Can be caused by choking, suffocating, drowning, or inhaling carbon monoxide.
Term
asthma
Definition
a chronic allergic disorder characterized by episodes of severe breathing difficulty, coughing, and wheezing
Term
atelectasis
Definition
also called collapsed lung, is the incomplete expansion of part or all of a lung due to a blockage of the air passages or pneumothorax.
Term
bradypnea
Definition
abnormally slow rate of respiration (less than 10 breaths per min).
Term
bronchodilator
Definition
a medication that expands the opening of the passages into the lungs.
Term
bronchorrhea
Definition
excessive discharge of mucous from the bronchi.
Term
bronchoscopy
Definition
visual examination of the bronchi using a bronchoscope.
Term
bronchospasm
Definition
a contraction of the smooth muscle in the walls of the bronchi and bronchioles that tighten and squeeze the airway shut.
Term
Cheyne-Stokes respiration
Definition
an irregular pattern of breathing characterized by alternating rapid or shallow respiration followed by slower respiration or apnea.
Term
croup
Definition
an acute respiratory syndrome in children and infants characterized by obstruction of the larynx, hoarseness, and a barking cough.
Term
cyanosis
Definition
a bluish discoloration of the skin caused by a lack of adequate oxygen.
Term
cystic fibrosis
Definition
a life threatening genetic disorder in which the lungs and pancreas are clogged with large quantities of abnormally thick mucous.
Term
diphtheria
Definition
an acute bacterial infection of the throat and upper respiratory tract.
Term
dysphonia
Definition
difficulty in speaking, which may include any impairment of vocal quality, hoarseness, weakness, or cracking of a boys voice during puberty.
Term
dyspnea
Definition
difficult or labored breathing; also known as shortness of breath.
Term
emphysema
Definition
the progressive loss of lung function that is commonly attributed to long-term smoking. Characterized by a decrease in total number of alveoli, enlargement of remaining alveoli, and progressive destruction of the walls of remaining alveoli.
Term
empyema
Definition
collection of pus in a body cavity.
Term
endotracheal intubation
Definition
the passage of a tube through the nose or mouth into the trachea to establish or maintain an open airway.
Term
epistaxis
Definition
bleeding from the nose that is usually caused by an injury, excessive use of blood thinners, or bleeding disorders; also known as a nosebleed.
Term
hemoptysis
Definition
coughing up of blood or bloodstained sputum.
Term
hemothorax
Definition
an accumulation of blood in the pleural cavity.
Term
hypercapnia
Definition
abnormal buildup of carbon dioxide in the blood.
Term
hyperpnea
Definition
breathing that is deeper and more rapid than is normal at rest.
Term
hypopnea
Definition
shallow or slow respiration.
Term
hypoxemia
Definition
a condition of having below-normal oxygen level in the blood.
Term
hypoxia
Definition
the condition of having below-normal oxygen levels in the body tissues and cells.
Term
laryngectomy
Definition
surgical removal of the larynx
Term
laryngitis
Definition
inflammation of the larynx
Term
laryngoscopy
Definition
visual examination of the larynx using a laryngoscope.
Term
laryngospasm
Definition
sudden spasmodic closure of the larynx
Term
mediastinum
Definition
the cavity located between the lungs that contains the heart, aorta, esophagus, trachea, bronchial tubes, and thymus gland.
Term
nebulizer
Definition
an electronic device that pumps air or oxygen through a liquid medicine to turn it into a mist which is then inhaled by the patience via a face mask or mouth piece.
Term
otolaryngologist
Definition
a physician with specialized training in the diagnosis and treatment of diseases and disorders of the ears, nose, throat, and related structures of the head and neck; also known as an ENT.
Term
pertussis
Definition
also known as whooping cough; a contagious bacterial infection of the upper respiratory tract characterized by recurrent bouts of a paroxysmal cough followed by breathlessness and noisy inspiration.
Term
pharyngitis
Definition
inflammation of the pharynx; sore throat.
Term
phlegm
Definition
thick mucus secreted by the tissues lining the respiratory passages.
Term
pleurisy
Definition
inflammation of the pleural cavity.
Term
pleurodynia
Definition
pain in the pleura or in the side that occurs in relation to breathing movements.
Term
pneumoconiosis
Definition
an abnormal condition caused by dust in the lungs that usually develops after years of environmental or occupational contact.
Term
pneumoectomy
Definition
surgical removal of all or part of a lung.
Term
pneumonia
Definition
a serious infection or inflammation of the lungs in which the smallest bronchioles and alveoli fill with pus and other liquid.
Term
pneumothorax
Definition
the accumulation of air in the pleural space causing a pressure imbalance that prevents the lung from fully expanding or can cause it to collapse.
Term
polysomnography
Definition
also called sleep study; measures physiological activity during sleep. often performed to detect nocturnal defects in breathing associated with sleep apnea.
Term
pulmonologist
Definition
a physician who specializes in diagnosing and treating diseases and disorders of the lungs and associated tissues.
Term
pulse oximeter
Definition
an external monitor placed on the patient's finger or earlobe to measure the oxygen saturation level in the blood.
Term
pyothorax
Definition
the presence of pus in the pleural cavity between the layers of the pleural membrane.
Term
sinusitis
Definition
an inflammation of the sinuses.
Term
sleep apnea
Definition
a potentially fatal disorder in which breathing repeatedly stops during sleep for long enough periods to cause a measurable decrease in blood oxygen levels.
Term
spirometer
Definition
a recording device that measure the amount of air inhaled or exhaled and the length of time required for each breath.
Term
tachypnea
Definition
abnormally rapid rate of respiration (more than 20 breaths per minute).
Term
thoracentesis
Definition
the surgical puncture of the chest wall with a needle to obtain fluid from the pleural cavity.
Term
thoracotomy
Definition
a surgical treatment of lung cancer by removing all or part of a lung.
Term
tracheostomy
Definition
the surgical creation of an opening into the trachea and insertion of a tube to facilitate the passage of air or the removal of secretions.
Term
tracheotomy
Definition
an emergency procedure in which an incision is made into the trachea to gain access to the airway below a blockage.
Term
tuberculosis
Definition
an infectious disease caused by Mycobacterium tuberculosis, usually attacks the lungs.
Term
bronch/o, bronch/i
Definition
bronchial tube, bronchus
Term
laryng/o
Definition
larynx, throat
Term
nas/o
Definition
nose
Term
ox/I, ox/o, ox/y
Definition
oxygen
Term
pharyng/o
Definition
throat, pharynx
Term
phon/o
Definition
sound, voice
Term
pleur/o
Definition
pleura, side of the body
Term
-pnea
Definition
breathing
Term
pneum/o, pneumon/o, pneu-
Definition
lung, air
Term
pulm/o, pulmon/o
Definition
lung
Term
sinus/o
Definition
sinus
Term
somn/o
Definition
sleep
Term
spir/o
Definition
to breathe
Term
thorac/o, -thorax
Definition
chest, pleural cavity
Term
trache/o, trachea
Definition
windpipe
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