BIOL 322 Exam 3 Questions With Complete Solutions
As intrapleural pressure becomes more negative,
transpulmonary pressure
a) increases
b) decreases Correct Answers a) increases
Assuming surface tensions were the same in two hollow spheres
of different sizes, which sphere would have the higher distension
pressure?
a) the larger sphere
b) the smaller sphere Correct Answers the smaller sphere
Based on the equation for air flow given in class, if flow is
positive, air is moving
a) into the lung
b) out of the lung Correct Answers b) out of the lung
During inspiration, which exerts more force?
a) the elastic recoil of the lung
b) the transpulmonary pressure Correct Answers b) the
transpulmonary pressure
Exercise
a) resets the baroreceptor reflex to the right
b) does not reset the baroreceptor reflex
c) resets the baroreceptor reflex to the left Correct Answers a)
resets the baroreceptor reflex to the right
How many oxygen molecules can bind to one hemoglobin
molecule? Correct Answers 4
, If a person's lung is too compliant they will have problems
a) exhaling
b) inhaling Correct Answers a) exhaling
In response to low oxygen concentrations, pulmonary arterioles
a) dilate
b) constrict
c) stay the same diameter Correct Answers b) constrict
Increasing the volume of the container will
a) decrease the pressure within the chamber
b) increase the pressure within the chamber Correct Answers a)
decrease the pressure within the chamber
Increasing total peripheral resistance
a) increases diastolic pressure
b) does not affect diastolic pressure
c) decreases diastolic pressure Correct Answers a) increases
diastolic pressure
Surfactant
a) increases lung compliance
b) decreases lung compliance
c) does not affect lung compliance Correct Answers a)
increases lung compliance
The clotting cascade in the body is normally started by
a) the final common pathway
b) the extrinsic pathway
As intrapleural pressure becomes more negative,
transpulmonary pressure
a) increases
b) decreases Correct Answers a) increases
Assuming surface tensions were the same in two hollow spheres
of different sizes, which sphere would have the higher distension
pressure?
a) the larger sphere
b) the smaller sphere Correct Answers the smaller sphere
Based on the equation for air flow given in class, if flow is
positive, air is moving
a) into the lung
b) out of the lung Correct Answers b) out of the lung
During inspiration, which exerts more force?
a) the elastic recoil of the lung
b) the transpulmonary pressure Correct Answers b) the
transpulmonary pressure
Exercise
a) resets the baroreceptor reflex to the right
b) does not reset the baroreceptor reflex
c) resets the baroreceptor reflex to the left Correct Answers a)
resets the baroreceptor reflex to the right
How many oxygen molecules can bind to one hemoglobin
molecule? Correct Answers 4
, If a person's lung is too compliant they will have problems
a) exhaling
b) inhaling Correct Answers a) exhaling
In response to low oxygen concentrations, pulmonary arterioles
a) dilate
b) constrict
c) stay the same diameter Correct Answers b) constrict
Increasing the volume of the container will
a) decrease the pressure within the chamber
b) increase the pressure within the chamber Correct Answers a)
decrease the pressure within the chamber
Increasing total peripheral resistance
a) increases diastolic pressure
b) does not affect diastolic pressure
c) decreases diastolic pressure Correct Answers a) increases
diastolic pressure
Surfactant
a) increases lung compliance
b) decreases lung compliance
c) does not affect lung compliance Correct Answers a)
increases lung compliance
The clotting cascade in the body is normally started by
a) the final common pathway
b) the extrinsic pathway
