chapter 10 airway management (EMT)

diffusion
during inhalation oxygen moves from the atmosphere into the lungs then crosses al alveolar membrane onto the hemoglobin
pharynx
composed of the nasopharynx, oropharynx, and the laryngopharynx (hypopharynx)
nasopharynx
lined with a ciliated mucous membrane that keeps contaminants such as dust and other small particles out of the respiratory tract
oropharynx
forms the posterior portion of the oral cavity, which is bordered superiorly by the hard and soft palates
epiglottis
helps seperate the digestive system from the respiratory system
-prevents food and liquid from entering the larynx during swallowing
occiput
posterior portion of the cranium
glottis
(glottic opening) space between the vocal cords and the narrowest portion of the adults airway
mediastinum
area between the lungs surrounded by tough connective tissue
phrenic nerve
lets the diaphragm contract
ventilation
the physical act of moving air in and out of the lungs
respiration
the actual exchange of oxygen and carbon dioxide in the alveoli
partial pressure
describes the amount of gas in air or dissolved in fluid, such as blood
tidal volume
the amount of air that is moved in or out of the lungs during one breath
residual volume
the air that remains in the lungs after maximal expiration
alveolar ventilation
the volume of air that reaches the alveoli
minute volume
the volume of air moved through the lungs in one minute
alveolar minute volume
the volume of air moved through the lungs in one minute minus dead space
vital capacity
the amount of air that can be forcibly expelled from the lungs after breathing in as deeply as possible
dead space
the portion of the tidal volume that does not reach alveoli and thus does not participate in gas exchange
COPD
chronic obstructive pulmonary disease) have difficulty eliminating carbon dioxide through exhalation
apnea
a lack of spontaneous breathing, followed by increase rate and depth of breathing
carina
point at which the trachea divides into the left and the right mainstem bronchi
patent
clear
stoma
opening in the skin connected to an organ in the body or other structure