test 3 - respiratory pt 2 Flashcards
(17 cards)
difference between obstructive and central sleep apnea
obstructive is snoring and central sleep apnea is when the brain isnt sending signals to the lungs to breathe
when apnea occurs in sleep
sleep apnea
cessation of breathing at the end of normal expiration
apnea
the larynx is a variable valve, and the laryngeal resistance may range from _ to _
minimal
absolute
a mercury _ measures atmospheric pressure using the number _ that mercury rises in an evacuated glass tube as a reference
barometer
mm
an alveolar pressure of at least _ cm of H2O is required to maintain laryngeal vibration
3
Quantity of air the lungs can hold
at the height of maximum inhalation. (Equal to the sum of all
lung volumes)
total lung capacity
Quantity of air in the
lungs at the resting expiratory level
functional residual capactiy
Amount of air that can be exhaled after as
deep an inhalation as possible
vital capacity
Maximum volume of air that can be
inhaled from the resting expiratory level
inspiratory capacity
_ of blood volume is in the brain
the brain uses approximately _ of all O2 we breathe
20%
25%
Quantity of air that
remains in the lungs and airways even after a
maximum exhalation
residual volume
Amount of air
that can be forcibly exhaled following a passive
exhalation
expiratory reserve volume
the quantity of air which can be inhaled beyond inhaled in a tidal volume cycle
inspiratory reserve volume
the volume of air inhaled and exhaled during an single expiratory cycle
tidal volume
provides graphic recordings of lung volumes and capacities
spirometer