BIO 235 FINAL EXAM QUESTIONS WITH THE LATEST
AND UPDATED SCORE
Venous blood returning from systemic circulation first enters the ___, proceeds to the
__ __ __ __ __ __ __ __ __ __ __ __ __
____, loses ___and gains ____ in the lungs, and then returns to the heart via the ____.
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
a) right atrium, right ventricle, pulmonary artery, CO2, O2, pulmonary veins.
__ __ __ __ __ __ __ __ __ __
b) Left atrium, left ventricle, pulmonary artery, CO2, O2, aorta
__ __ __ __ __ __ __ __ __
c)Right atrium, right ventricle, pulmonary artery, O2, CO2, pulmonary veins
__ __ __ __ __ __ __ __ __
d) Left atrium, right ventricle, pulmonary veins, O2, CO2, aorta-- Correct Answer ✔✔
__ __ __ __ __ __ __ __ __ __ __ __ __
A. Right atrium, right ventricle, pulmonary artery, CO2, O2, pulmonary veins
__ __ __ __ __ __ __ __ __ __
The upper respiratory tract differs from the lower respiratory tract in what way?
__ __ __ __ __ __ __ __ __ __ __ __
A) air is taken in through the lower respiratory tract, and CO2/O2 are exchanged in the
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
upper respiratory tract __ __
b) air is taken in through the upper respiratory tract, and CO2/O2 are exchanged in the
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
lower respiratory tract __ __
c) CO2 is removed from circulation in the upper respiratory tract
__ __ __ __ __ __ __ __ __ __
d) O2 is removed from circulation in the lower respiratory tract-- Correct Answer ✔✔
__ __ __ __ __ __ __ __ __ __ __ __ __ __
B. Air is taken in through the upper respiratory tract, and CO2/O2 are exchanged in the
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
lower respiratory tract __ __
Smooth muscle surrounds which structure of the lower respiratory tract?
__ __ __ __ __ __ __ __ __
a) Alveoli
__
b) Alveolar capillaries
__ __
c) Terminal bronchioles
__ __
d) Trachea-- Correct Answer ✔✔ C. terminal bronchioles
__ __ __ __ __ __ __
In the alveolus, ____squamous epithelial cells are responsible for ___, while ___cells are
__ __ __ __ __ __ __ __ __ __ __ __
responsible for ____.
__ __ __
a) Type 1; surfactant secretion; Type 2, gas exchange
__ __ __ __ __ __ __ __
,b) type 1; debris removal; type 2; surfactant secretion
__ __ __ __ __ __ __ __
c) type 3; debris removal; type 1; gas exchange
__ __ __ __ __ __ __ __
d) type 1; gas exchange; type 2: surfactant secretion-- Correct Answer ✔✔ d) type 1; gas
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __
exchange; type 2: surfactant secretion
__ __ __ __ __
There is no net air flow into or out of the lungs when
__ __ __ __ __ __ __ __ __ __ __ __
a) P alveolus = P atmosphere
__ __ __ __ __
b) P alveolus< P atmosphere
__ __ __ __
c) P pleural wall > P atmosphere
__ __ __ __ __ __
d) P atmosphere< P pleural wall-- Correct Answer ✔✔ a) P alveolus = P atmosphere
__ __ __ __ __ __ __ __ __ __ __ __ __ __
What keeps the lungs from collapsing
__ __ __ __ __
Check the-- Correct Answer ✔✔ b) trans pulmonary negative pressure caused by
__ __ __ __ __ __ __ __ __ __ __ __
negative pressure from pleural cavity __ __ __ __
Identify the correct sequence of events for inspiration
__ __ __ __ __ __ __
a) diaphragm & inspiratory intercostals relax, lungs expand, air flows into alveoli
__ __ __ __ __ __ __ __ __ __ __
b) diaphragm & inspiratory intercostals contract; lungs expand, air flows out of the
__ __ __ __ __ __ __ __ __ __ __ __ __
alveoli
c) diaphragm & inspiratory intercostals contract, lungs expand, air flows into alveoli
__ __ __ __ __ __ __ __ __ __ __
d)diaphragm & expiratory intercostals relax, lungs contract, air flows out of alveoli--
__ __ __ __ __ __ __ __ __ __ __ __
Correct Answer ✔✔ c) diaphragm & inspiratory intercostals contract, lungs expand, air
__ __ __ __ __ __ __ __ __ __ __ __
flows into alveoli __ __
the main determiners of lung compliance are
__ __ __ __ __ __
a) lung tissue thickness, surface tension of fluid on the inner lung surface
__ __ __ __ __ __ __ __ __ __ __ __
b) lung tissue perforations, surface tension of fluid on the inner lung surface
__ __ __ __ __ __ __ __ __ __ __ __
c) lung tissue surface area, surface tension of fluid on the inner lung surface
__ __ __ __ __ __ __ __ __ __ __ __ __
d) lung tissue thickness, surface tension of fluid on the outer lung surface-- Correct
__ __ __ __ __ __ __ __ __ __ __ __ __ __
Answer ✔✔ a) lung tissue thickness, surface tension of fluid on the inner lung surface
__ __ __ __ __ __ __ __ __ __ __ __ __ __
lung compliance is defined as
__ __ __ __ __
a) lung volume/ transpulmonary pressure
__ __ __ __
b) transpulmonary pressure/ lung volume
__ __ __ __
c) transthoracic pressure/ atmospheric pressure
__ __ __ __
,d) none of the above-- Correct Answer ✔✔ d) none of the above
__ __ __ __ __ __ __ __ __ __ __ __
trained athletes tend to have __ __ __ __ __
a) increased lung compliance
__ __ __
b) normal lung compliance
__ __ __
c) decreased lung compliance
__ __ __
d) asthma-- Correct Answer ✔✔ a) increased lung compliance
__ __ __ __ __ __ __ __
which is true about the pleural sac
__ __ __ __ __ __
a)it is continuous with the atmosphere and protects the lungs from infections
__ __ __ __ __ __ __ __ __ __ __
b) it is a closed sac surrounding each lung and contains only a tiny volume of lubricating
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
fluid
c) it is a closed sac surrounding each lung and contain a large volume of surfactant
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __
d) it is a closed, air-filled space surrounding both lungs that has a negative pressure
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __
compared to atmospheric pressure-- Correct Answer ✔✔ b) it is a closed sac
__ __ __ __ __ __ __ __ __ __ __ __ __
surrounding each lung and contains only a tiny volume of lubricating fluid
__ __ __ __ __ __ __ __ __ __ __
which structure is NOT part of the "anatomical dead space?"
__ __ __ __ __ __ __ __ __
a) bronchiole
__
b) trachea
__
c) bronchus
__
d)respiratory bronchiole-- Correct Answer ✔✔ d)respiratory bronchiole __ __ __ __ __ __
the volume of air flowing into the alveoli during inhalation/inspiration is increased when
__ __ __ __ __ __ __ __ __ __ __ __ __
there is an increase in which of these?
__ __ __ __ __ __ __
a)air resistance __
b)the pressure gradient from the atmosphere to the alveoli
__ __ __ __ __ __ __ __
c) the pressure in the intrapleural space
__ __ __ __ __ __
d) the curvature of the diaphragm-- Correct Answer ✔✔ b)the pressure gradient from
__ __ __ __ __ __ __ __ __ __ __ __ __
the atmosphere to the alveoli
__ __ __ __
under normal circumstances, which of the following would result from an increase in
__ __ __ __ __ __ __ __ __ __ __ __ __
transpulmonary pressure? __
a) inhalation/inspiration
__
b) exhalation/expiration
__
c) a collapsed lung
__ __ __
, d) emphysema-- Correct Answer ✔✔ a) inhalation/inspiration
__ __ __ __ __ __
which of the following statements about the response of arteriole smooth muscle to
__ __ __ __ __ __ __ __ __ __ __ __ __
changing oxygen partial pressure is true? __ __ __ __ __
a) both systemic and pulmonary arterioles respond to a decrease in PO2 by constricting
__ __ __ __ __ __ __ __ __ __ __ __ __
b) both systemic and pulmonary arterioles respond to a decrease in PO2 by dilating
__ __ __ __ __ __ __ __ __ __ __ __ __
c) systemic arterioles respond to a decrease in PO2 by dilating but pulmonary arterioles
__ __ __ __ __ __ __ __ __ __ __ __ __ __
constrict in response to decreased PO __ __ __ __ __
d) systemic arterioles respond to a decrease in PO2 by constricting but pulmonary
__ __ __ __ __ __ __ __ __ __ __ __ __
arterioles dilate in response to decreased PO2-- Correct Answer ✔✔ c) systemic
__ __ __ __ __ __ __ __ __ __ __ __
arterioles respond to a decrease in PO2 by dilating but pulmonary arterioles constrict in
__ __ __ __ __ __ __ __ __ __ __ __ __ __
response to decreased PO __ __ __
during an unforced exhalation/expiration, which would NOT be true?
__ __ __ __ __ __ __ __
a) alveolar pressure is greater than atmospheric pressure
__ __ __ __ __ __ __
b) intrapleural pressure is greater than alveolar pressure
__ __ __ __ __ __ __
c) intrapleural pressure becomes less negative
__ __ __ __ __
d) the diaphragm relaxes-- Correct Answer ✔✔ b) intrapleural pressure is greater than
__ __ __ __ __ __ __ __ __ __ __ __ __
alveolar pressure __
which true regarding how gases dissolve in liquids?
__ __ __ __ __ __ __
a0 the concentration of a gas in a liquid equilibrates to match the concentration of that
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
gas in the air to which of the liquid is exposed
__ __ __ __ __ __ __ __ __ __ __
b) different gasses have the same solubility in liquids
__ __ __ __ __ __ __ __
c) the partial pressure of a gas in a liquid is equal to the amount greatly diffusing in the
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
liquid plus the amount bound to large molecules within the liquid
__ __ __ __ __ __ __ __ __ __
d) the partial pressure of a particular gas in a liquid equilibrates to match the partial
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
pressure on that gas in the air to which the liquid is exposed-- Correct Answer ✔✔ d)
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
the partial pressure of a particular gas in a liquid equilibrates to match the partial
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __
pressure o that gas in the air to which the liquid is exposed
__ __ __ __ __ __ __ __ __ __ __ __
which of these results from hyperventilation?
__ __ __ __ __
a) increased alveolar PCO2 and decreased alveolar PO2
__ __ __ __ __ __ __
b) an increase in both PO2 & PO2
__ __ __ __ __ __ __
c) decreased alveolar PCO2 & increased alveolar PO2
__ __ __ __ __ __ __
AND UPDATED SCORE
Venous blood returning from systemic circulation first enters the ___, proceeds to the
__ __ __ __ __ __ __ __ __ __ __ __ __
____, loses ___and gains ____ in the lungs, and then returns to the heart via the ____.
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
a) right atrium, right ventricle, pulmonary artery, CO2, O2, pulmonary veins.
__ __ __ __ __ __ __ __ __ __
b) Left atrium, left ventricle, pulmonary artery, CO2, O2, aorta
__ __ __ __ __ __ __ __ __
c)Right atrium, right ventricle, pulmonary artery, O2, CO2, pulmonary veins
__ __ __ __ __ __ __ __ __
d) Left atrium, right ventricle, pulmonary veins, O2, CO2, aorta-- Correct Answer ✔✔
__ __ __ __ __ __ __ __ __ __ __ __ __
A. Right atrium, right ventricle, pulmonary artery, CO2, O2, pulmonary veins
__ __ __ __ __ __ __ __ __ __
The upper respiratory tract differs from the lower respiratory tract in what way?
__ __ __ __ __ __ __ __ __ __ __ __
A) air is taken in through the lower respiratory tract, and CO2/O2 are exchanged in the
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
upper respiratory tract __ __
b) air is taken in through the upper respiratory tract, and CO2/O2 are exchanged in the
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
lower respiratory tract __ __
c) CO2 is removed from circulation in the upper respiratory tract
__ __ __ __ __ __ __ __ __ __
d) O2 is removed from circulation in the lower respiratory tract-- Correct Answer ✔✔
__ __ __ __ __ __ __ __ __ __ __ __ __ __
B. Air is taken in through the upper respiratory tract, and CO2/O2 are exchanged in the
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
lower respiratory tract __ __
Smooth muscle surrounds which structure of the lower respiratory tract?
__ __ __ __ __ __ __ __ __
a) Alveoli
__
b) Alveolar capillaries
__ __
c) Terminal bronchioles
__ __
d) Trachea-- Correct Answer ✔✔ C. terminal bronchioles
__ __ __ __ __ __ __
In the alveolus, ____squamous epithelial cells are responsible for ___, while ___cells are
__ __ __ __ __ __ __ __ __ __ __ __
responsible for ____.
__ __ __
a) Type 1; surfactant secretion; Type 2, gas exchange
__ __ __ __ __ __ __ __
,b) type 1; debris removal; type 2; surfactant secretion
__ __ __ __ __ __ __ __
c) type 3; debris removal; type 1; gas exchange
__ __ __ __ __ __ __ __
d) type 1; gas exchange; type 2: surfactant secretion-- Correct Answer ✔✔ d) type 1; gas
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __
exchange; type 2: surfactant secretion
__ __ __ __ __
There is no net air flow into or out of the lungs when
__ __ __ __ __ __ __ __ __ __ __ __
a) P alveolus = P atmosphere
__ __ __ __ __
b) P alveolus< P atmosphere
__ __ __ __
c) P pleural wall > P atmosphere
__ __ __ __ __ __
d) P atmosphere< P pleural wall-- Correct Answer ✔✔ a) P alveolus = P atmosphere
__ __ __ __ __ __ __ __ __ __ __ __ __ __
What keeps the lungs from collapsing
__ __ __ __ __
Check the-- Correct Answer ✔✔ b) trans pulmonary negative pressure caused by
__ __ __ __ __ __ __ __ __ __ __ __
negative pressure from pleural cavity __ __ __ __
Identify the correct sequence of events for inspiration
__ __ __ __ __ __ __
a) diaphragm & inspiratory intercostals relax, lungs expand, air flows into alveoli
__ __ __ __ __ __ __ __ __ __ __
b) diaphragm & inspiratory intercostals contract; lungs expand, air flows out of the
__ __ __ __ __ __ __ __ __ __ __ __ __
alveoli
c) diaphragm & inspiratory intercostals contract, lungs expand, air flows into alveoli
__ __ __ __ __ __ __ __ __ __ __
d)diaphragm & expiratory intercostals relax, lungs contract, air flows out of alveoli--
__ __ __ __ __ __ __ __ __ __ __ __
Correct Answer ✔✔ c) diaphragm & inspiratory intercostals contract, lungs expand, air
__ __ __ __ __ __ __ __ __ __ __ __
flows into alveoli __ __
the main determiners of lung compliance are
__ __ __ __ __ __
a) lung tissue thickness, surface tension of fluid on the inner lung surface
__ __ __ __ __ __ __ __ __ __ __ __
b) lung tissue perforations, surface tension of fluid on the inner lung surface
__ __ __ __ __ __ __ __ __ __ __ __
c) lung tissue surface area, surface tension of fluid on the inner lung surface
__ __ __ __ __ __ __ __ __ __ __ __ __
d) lung tissue thickness, surface tension of fluid on the outer lung surface-- Correct
__ __ __ __ __ __ __ __ __ __ __ __ __ __
Answer ✔✔ a) lung tissue thickness, surface tension of fluid on the inner lung surface
__ __ __ __ __ __ __ __ __ __ __ __ __ __
lung compliance is defined as
__ __ __ __ __
a) lung volume/ transpulmonary pressure
__ __ __ __
b) transpulmonary pressure/ lung volume
__ __ __ __
c) transthoracic pressure/ atmospheric pressure
__ __ __ __
,d) none of the above-- Correct Answer ✔✔ d) none of the above
__ __ __ __ __ __ __ __ __ __ __ __
trained athletes tend to have __ __ __ __ __
a) increased lung compliance
__ __ __
b) normal lung compliance
__ __ __
c) decreased lung compliance
__ __ __
d) asthma-- Correct Answer ✔✔ a) increased lung compliance
__ __ __ __ __ __ __ __
which is true about the pleural sac
__ __ __ __ __ __
a)it is continuous with the atmosphere and protects the lungs from infections
__ __ __ __ __ __ __ __ __ __ __
b) it is a closed sac surrounding each lung and contains only a tiny volume of lubricating
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
fluid
c) it is a closed sac surrounding each lung and contain a large volume of surfactant
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __
d) it is a closed, air-filled space surrounding both lungs that has a negative pressure
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __
compared to atmospheric pressure-- Correct Answer ✔✔ b) it is a closed sac
__ __ __ __ __ __ __ __ __ __ __ __ __
surrounding each lung and contains only a tiny volume of lubricating fluid
__ __ __ __ __ __ __ __ __ __ __
which structure is NOT part of the "anatomical dead space?"
__ __ __ __ __ __ __ __ __
a) bronchiole
__
b) trachea
__
c) bronchus
__
d)respiratory bronchiole-- Correct Answer ✔✔ d)respiratory bronchiole __ __ __ __ __ __
the volume of air flowing into the alveoli during inhalation/inspiration is increased when
__ __ __ __ __ __ __ __ __ __ __ __ __
there is an increase in which of these?
__ __ __ __ __ __ __
a)air resistance __
b)the pressure gradient from the atmosphere to the alveoli
__ __ __ __ __ __ __ __
c) the pressure in the intrapleural space
__ __ __ __ __ __
d) the curvature of the diaphragm-- Correct Answer ✔✔ b)the pressure gradient from
__ __ __ __ __ __ __ __ __ __ __ __ __
the atmosphere to the alveoli
__ __ __ __
under normal circumstances, which of the following would result from an increase in
__ __ __ __ __ __ __ __ __ __ __ __ __
transpulmonary pressure? __
a) inhalation/inspiration
__
b) exhalation/expiration
__
c) a collapsed lung
__ __ __
, d) emphysema-- Correct Answer ✔✔ a) inhalation/inspiration
__ __ __ __ __ __
which of the following statements about the response of arteriole smooth muscle to
__ __ __ __ __ __ __ __ __ __ __ __ __
changing oxygen partial pressure is true? __ __ __ __ __
a) both systemic and pulmonary arterioles respond to a decrease in PO2 by constricting
__ __ __ __ __ __ __ __ __ __ __ __ __
b) both systemic and pulmonary arterioles respond to a decrease in PO2 by dilating
__ __ __ __ __ __ __ __ __ __ __ __ __
c) systemic arterioles respond to a decrease in PO2 by dilating but pulmonary arterioles
__ __ __ __ __ __ __ __ __ __ __ __ __ __
constrict in response to decreased PO __ __ __ __ __
d) systemic arterioles respond to a decrease in PO2 by constricting but pulmonary
__ __ __ __ __ __ __ __ __ __ __ __ __
arterioles dilate in response to decreased PO2-- Correct Answer ✔✔ c) systemic
__ __ __ __ __ __ __ __ __ __ __ __
arterioles respond to a decrease in PO2 by dilating but pulmonary arterioles constrict in
__ __ __ __ __ __ __ __ __ __ __ __ __ __
response to decreased PO __ __ __
during an unforced exhalation/expiration, which would NOT be true?
__ __ __ __ __ __ __ __
a) alveolar pressure is greater than atmospheric pressure
__ __ __ __ __ __ __
b) intrapleural pressure is greater than alveolar pressure
__ __ __ __ __ __ __
c) intrapleural pressure becomes less negative
__ __ __ __ __
d) the diaphragm relaxes-- Correct Answer ✔✔ b) intrapleural pressure is greater than
__ __ __ __ __ __ __ __ __ __ __ __ __
alveolar pressure __
which true regarding how gases dissolve in liquids?
__ __ __ __ __ __ __
a0 the concentration of a gas in a liquid equilibrates to match the concentration of that
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
gas in the air to which of the liquid is exposed
__ __ __ __ __ __ __ __ __ __ __
b) different gasses have the same solubility in liquids
__ __ __ __ __ __ __ __
c) the partial pressure of a gas in a liquid is equal to the amount greatly diffusing in the
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
liquid plus the amount bound to large molecules within the liquid
__ __ __ __ __ __ __ __ __ __
d) the partial pressure of a particular gas in a liquid equilibrates to match the partial
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
pressure on that gas in the air to which the liquid is exposed-- Correct Answer ✔✔ d)
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
the partial pressure of a particular gas in a liquid equilibrates to match the partial
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __
pressure o that gas in the air to which the liquid is exposed
__ __ __ __ __ __ __ __ __ __ __ __
which of these results from hyperventilation?
__ __ __ __ __
a) increased alveolar PCO2 and decreased alveolar PO2
__ __ __ __ __ __ __
b) an increase in both PO2 & PO2
__ __ __ __ __ __ __
c) decreased alveolar PCO2 & increased alveolar PO2
__ __ __ __ __ __ __
