Resp BB Quiz Flashcards
The most important factor in the control of ventilation is?
Carbon dioxide excess
Lack of Oxygen
Carbon dioxide excess
The dead space of an adult, compared to an infant would normally be?
smaller
larger
LARGER
Which of the following parameters CANNOT be directly measured by the spirometer?
tidal volume
residual volume
inspiratory reserve volume
expiratory reserve volume
residual volume
The lung volumes that are assessed by the spirometer are WHAT compared to the actual volumes in the lungs?
larger
the same
smaller
smaller
Compared to breathing dry air what is it like breathing in a steam room?
more difficult
easier
more difficult
What happens to the compliance of the lungs as we grow older?
it decreases
it increases
decreases
Compared to the standing position what happens to the vital capacity when the person lies down?
it increases
it decreases
decreases
Alveolar ventilation is equal to?
dead space ventilation
tidal volume times respiratory rate
minute ventilation
minute ventilation minus dead space ventilation
carbon dioxide production / minute
minute ventilation minus dead space ventilation
Define - functional residual capacity
the maximum amount of air that a person can expel from their lungs after first filling the lungs to their maximum extent
Define - inspiratory capacity
the volume of gas in the lungs after the end of maximal inspiration
Define - vital capacity
the maximal volume that can be inspired from resting end-expiratory level
Define - total lung capacity
the amount of air remaining in the lungs at the end of normal expiration
Define - expiratory reserve volume
the amount of air that can still be forcefully expired after the end or a normal tidal expiration
Define - inspiratory reserve volume
the extra volume of air that can be inspired over and beyond the normal tidal volume
Define - residual volume
the volume of air remaining in the lungs even after the most forceful expiration
Define - Tidal Volume
the volume of air inspired and expired with each normal breath
Because there is more oxygen in an alveolus than in the blood around it, oxygen diffuses from the
capillaries into the veins
arteries into the capillaries
alveolus into the blood
blood into the alveolus
alveolus into blood
Cells in the breathing centre monitor the amount of oxygen in the blood
True
False
False
Direct and immediate physiological consequence of smoking on the cardiovascular system is?
a) constricts blood vessels
b) causes blood pressure to rise
c) makes the heart work harder
d) causes heart disease
A
Select the answer that lists the respiratory structures from largest to smallest.
Alveoli, bronchioles, bronchi
Bronchioles, bronchi, alveoli
Bronchi, bronchioles, alveoli
Bronchi, alveoli, bronchioles
Bronchi, bronchioles alveoli
Select the statement(s) that is/are TRUE about gas exchange.
a) It is a very efficient process.
b) Exhaled air usually contains no oxygen
c) The lungs remove about half of the oxygen of inhaled air
d) The lungs increase the carbon dioxide content of inhaled air by a factor of 100
a) It is a very efficient process.
d) The lungs increase the carbon dioxide content of inhaled air by a factor of 100
The brain controls breathing in a centre located in the medulla oblongata
True
False
True
The force that drives air into the lungs comes from air pressure.
True
False
True
What happens when pressure in the chest cavity becomes greater than atmospheric pressure?
Air rushes into the lungs
Air cannot escape from the lungs
The diaphragm contracts
Air rushes out of the lungs
Air rushes out of the lungs
