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EBR EMS

EBR EMS Chapter 14 Definitions

QuestionAnswer
alveolar duct airway that branches from the smallest bronchioles
alveolar sac each alveolar duct ends in several sacs that resemble a cluster of grapes
alveoli a small cavity
aortic body small cluster of chemosensitive cells that respond to carbon dioxide and oxygen levels
apnea temporary cessation of breathing
bronchi the branches of the trachea
bronchiolus small branch of a bronchus
carbaminohemoglobin the compound formed by the union of carbon dioxide with hemoglobin
carotid body chemoreceptor located in the carotid artery that detects changes in the oxygen, CO2, and blood acid levels
conchae shell-shaped strucuture; ex: bony projections into the nasal cavity
dyspnea difficult of labored breathing
epiglottis lidlike cartilage overhanging the entrance to the larynx
eupnea normal respiration
expiratory reserve volume the amount of air that can be forcibly exhaled after expiring the tidal volume
glottis the space between the vocal cords
heme iron-containing component of hemoglobin
hyperventilation very rapid deep respirations
hypoventilation slow and shallow respirations
hypoxia abnormallly low concentraction of oxygen in the blood or tissue fluids
infant respiratory distress syndrome leading cause of death in premature babies, due to the lack of surfactant in the alveolar air sacs
inspiratory reserve volume the amount of air that can be forcibly inspired over and above a normal respiration
maximum oxygen consumption the max amount of oxygen taken up by the lungs, transported to the tissues, and used to do work
partial pressure pressure exerted by any one gas in a mixture of gases or in a liquid; symbol used to designate partial pressure is a capital letter P preceding the chemical symbol for the gas
phrenic nerve the nerve that stimulates the diaphragm to contact
pleurisy inflammation of the pleura
pulmonary ventilation breathing; process that moves air in and out of the lungs
residual volume the air that remains in the lungs after the most forceful expiration
respiration breathing
respiratory arrest cessation of breathing without resumption
respiratory membrane the single layer of cells that makes up the wall of the alveoli
respiratory mucosa mucus-covered membrane that lines the tubes of the respiratory tree
sinusitis sinus infections
spirometer an instrument used to measure the amount of air exchanged in breathing
surfactant a substance covering the surface of the respiratory membrane inside the alveolus, which reduces surface tension and prevents the alveoli from collapsing
tidal volume amount of air breathed in and out with each breath
tonsillectomy surgical procedure used to remove the tonsils
trachea the windpipe, the tube extending from the larynx to the bronchi
vital capacity largest amount of air that can be moved in and out of the lungs in one inspiration and expiration
Created by: hjkruse