SPAU 3304 Exam 2 REVISED ACTUAL
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
, Functional Residual Capacity is the combination of which lung volumes? - CORRECT
ANSWER - ERV + RV
define Total Lung Capacity - CORRECT ANSWER - total amount of air the lungs can
hold
Total Lung Capacity is the combination of which lung volumes? - CORRECT ANSWER -
TV + IRV + ERV + RV
define Inspiratory Capacity - CORRECT ANSWER - maximum amount of air that can be
inspired
Inspiratory Capacity is the combination of which lung volumes? - CORRECT ANSWER -
TV + IRV
How does vital capacity change with age? - CORRECT ANSWER - increases from
infancy through puberty
stays stable throughout adulthood
decreases in mature ages
What are the five major changes that occur when switching from breathing for life to breathing
for speech? - CORRECT ANSWER - 1. Location of air intake
2. ratio of time for inhalation vs exhalation
3. the volume of air inhaled per cycle
4. the muscle activity for exhalation
5. chest wall shape.
What is the location of air intake for life? - CORRECT ANSWER - nose
What is the location of air intake for speech? - CORRECT ANSWER - mouth
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
, Functional Residual Capacity is the combination of which lung volumes? - CORRECT
ANSWER - ERV + RV
define Total Lung Capacity - CORRECT ANSWER - total amount of air the lungs can
hold
Total Lung Capacity is the combination of which lung volumes? - CORRECT ANSWER -
TV + IRV + ERV + RV
define Inspiratory Capacity - CORRECT ANSWER - maximum amount of air that can be
inspired
Inspiratory Capacity is the combination of which lung volumes? - CORRECT ANSWER -
TV + IRV
How does vital capacity change with age? - CORRECT ANSWER - increases from
infancy through puberty
stays stable throughout adulthood
decreases in mature ages
What are the five major changes that occur when switching from breathing for life to breathing
for speech? - CORRECT ANSWER - 1. Location of air intake
2. ratio of time for inhalation vs exhalation
3. the volume of air inhaled per cycle
4. the muscle activity for exhalation
5. chest wall shape.
What is the location of air intake for life? - CORRECT ANSWER - nose
What is the location of air intake for speech? - CORRECT ANSWER - mouth
