SPAU 3304 Exam 2 UPDATED Exam
Questions and CORRECT Answers
Boyle's Law - CORRECT ANSWER - air flows from a region of greater air density (or
pressure) to a region of lesser air density (or pressure)
During inhalation, the diaphragm & external intercostals do what? - CORRECT
ANSWER - contract
what is pleural linkage? - CORRECT ANSWER - The negative pressure in the pleural
space that binds the lungs and thorax
During inhalation, what happens to the thoracic cavity? - CORRECT ANSWER - the
thoracic enlarges
there are structural attachments such as ligaments or tendons between the lungs and thorax (T/F)
- CORRECT ANSWER - FALSE
only the negative pressure in the pleural space keeps them connected
what would happen to the lungs and thorax without pleural linkage? - CORRECT
ANSWER - the lungs would be in a more deflated state
the thorax would be in a more expanded state
During inhalation, do the lungs expand or decrease in volume? - CORRECT ANSWER -
the lungs expand in volume
During inhalation, lungs are able to expand due to what? - CORRECT ANSWER - pleural
linkage
where is P alv (Alveolar pressure) located? - CORRECT ANSWER - within the lungs
,is P alv (Alveolar pressure) positive/negative? - CORRECT ANSWER - changes from
slightly positive to slightly negative as a person breaths
During inhalation, to bring air into the lungs, P alv (Alveolar pressure) must be _________
relative P atmos (atmosphere pressure) - CORRECT ANSWER - negative (lower)
During exhalation, the diaphragm & external intercostals do what? - CORRECT
ANSWER - Relax
During exhalation, what happens to the thoracic cavity? - CORRECT ANSWER - the
thoracic decreases in volume
During exhalation, do the lungs expand or decrease in volume? - CORRECT ANSWER -
the lungs decrease in volume
During exhalation, for air to exit the respiratory system, P alv (Alveolar pressure) must be
_________ relative P atmos (atmosphere pressure) - CORRECT ANSWER - positive
(higher)
what Rate of Breathing is measured in? - CORRECT ANSWER - breaths per minute
(BPM)
what is the average BPM for an adult breathing at rest? - CORRECT ANSWER - 12-15
BPM
"quiet breathing" is driven primarily by - CORRECT ANSWER - the autonomic
innervation of the diaphragm
what is a Spirometer? - CORRECT ANSWER - a device that measures the amount of air
an individual inhales or exhales and the rate at which the air is moved into or out of the lungs
, Lung volumes are single with no overlapping values (T/F) - CORRECT ANSWER -
TRUE
Lung volume refers to - CORRECT ANSWER - the amount of air in the lungs at a given
time and how much of that air is used for various purposes
Lung capacities describe - CORRECT ANSWER - two or more lung volumes
define Tidal Volume (TV) - CORRECT ANSWER - volume of air inhaled and exhaled
during a single cycle of breathing at rest
define Residual Volume (RV) - CORRECT ANSWER - volume remaining in lungs after
maximum exhalation
define Inspiratory Reserve Volume (IRV) - CORRECT ANSWER - volume of air that can
be inhaled ABOVE tidal volume
Define Expiratory Reserve Volume (ERV) - CORRECT ANSWER - volume of air that can
be inhaled BELOW tidal volume
define Vital Capacity - CORRECT ANSWER - volume of air that can be exhaled after
maximum inhalation
Vital Capacity is the combination of which lung volumes? - CORRECT ANSWER - IRV +
TV + ERV
define Functional Residual Capacity - CORRECT ANSWER - volume of air that is
remaining in the lungs and airways at the end of the cycle
Questions and CORRECT Answers
Boyle's Law - CORRECT ANSWER - air flows from a region of greater air density (or
pressure) to a region of lesser air density (or pressure)
During inhalation, the diaphragm & external intercostals do what? - CORRECT
ANSWER - contract
what is pleural linkage? - CORRECT ANSWER - The negative pressure in the pleural
space that binds the lungs and thorax
During inhalation, what happens to the thoracic cavity? - CORRECT ANSWER - the
thoracic enlarges
there are structural attachments such as ligaments or tendons between the lungs and thorax (T/F)
- CORRECT ANSWER - FALSE
only the negative pressure in the pleural space keeps them connected
what would happen to the lungs and thorax without pleural linkage? - CORRECT
ANSWER - the lungs would be in a more deflated state
the thorax would be in a more expanded state
During inhalation, do the lungs expand or decrease in volume? - CORRECT ANSWER -
the lungs expand in volume
During inhalation, lungs are able to expand due to what? - CORRECT ANSWER - pleural
linkage
where is P alv (Alveolar pressure) located? - CORRECT ANSWER - within the lungs
,is P alv (Alveolar pressure) positive/negative? - CORRECT ANSWER - changes from
slightly positive to slightly negative as a person breaths
During inhalation, to bring air into the lungs, P alv (Alveolar pressure) must be _________
relative P atmos (atmosphere pressure) - CORRECT ANSWER - negative (lower)
During exhalation, the diaphragm & external intercostals do what? - CORRECT
ANSWER - Relax
During exhalation, what happens to the thoracic cavity? - CORRECT ANSWER - the
thoracic decreases in volume
During exhalation, do the lungs expand or decrease in volume? - CORRECT ANSWER -
the lungs decrease in volume
During exhalation, for air to exit the respiratory system, P alv (Alveolar pressure) must be
_________ relative P atmos (atmosphere pressure) - CORRECT ANSWER - positive
(higher)
what Rate of Breathing is measured in? - CORRECT ANSWER - breaths per minute
(BPM)
what is the average BPM for an adult breathing at rest? - CORRECT ANSWER - 12-15
BPM
"quiet breathing" is driven primarily by - CORRECT ANSWER - the autonomic
innervation of the diaphragm
what is a Spirometer? - CORRECT ANSWER - a device that measures the amount of air
an individual inhales or exhales and the rate at which the air is moved into or out of the lungs
, Lung volumes are single with no overlapping values (T/F) - CORRECT ANSWER -
TRUE
Lung volume refers to - CORRECT ANSWER - the amount of air in the lungs at a given
time and how much of that air is used for various purposes
Lung capacities describe - CORRECT ANSWER - two or more lung volumes
define Tidal Volume (TV) - CORRECT ANSWER - volume of air inhaled and exhaled
during a single cycle of breathing at rest
define Residual Volume (RV) - CORRECT ANSWER - volume remaining in lungs after
maximum exhalation
define Inspiratory Reserve Volume (IRV) - CORRECT ANSWER - volume of air that can
be inhaled ABOVE tidal volume
Define Expiratory Reserve Volume (ERV) - CORRECT ANSWER - volume of air that can
be inhaled BELOW tidal volume
define Vital Capacity - CORRECT ANSWER - volume of air that can be exhaled after
maximum inhalation
Vital Capacity is the combination of which lung volumes? - CORRECT ANSWER - IRV +
TV + ERV
define Functional Residual Capacity - CORRECT ANSWER - volume of air that is
remaining in the lungs and airways at the end of the cycle
