Anatomy - Cardiovascular Exam Questions and Answers Latest Update Graded A+
Which of the following would increase cardiac output to the greatest extent?
A. increased heart rate and decreased stroke volume
B. decreased heart rate and decreased stroke volume
C. decreased heart rate and increased ...
Which of the following would increase cardiac output to the greatest extent?
A. increased heart rate and decreased stroke volume
B. decreased heart rate and decreased stroke volume
C. decreased heart rate and increased stroke volume
D. increased heart rate and increased stroke volume - Answers D
Which of the following would increase heart rate?
A. decreased activity of the sympathetic nervous system
B. increased activity of the parasympathetic nervous system
C. acetylcholine
D. epinephrine and norepinephrine - Answers D
How would an increase in the sympathetic nervous system increase stroke volume?
A. increase contractility
B. increased end diastolic volume
C. decreased end diastolic volume
D. increased end systolic volume - Answers A
By which mechanism would an increase in venous return increase stroke volume?
A. increased contractility
B. increased end diastolic volume
C. increased end systolic volume
D. decreased end diastolic volume - Answers B
How would a decrease in blood volume affect both stroke and volume and cardiac output?
A. increased stroke volume and increased cardiac output
B. decreased stroke volume and decreased cardiac output
C. decreased stroke volume and no change in cardiac output
, D. no change in stroke volume and decreased cardiac output - Answers C
In the capillaries, hydrostatic pressure (HP) is exerted by _______.
A. proteins in the blood
B. blood pressure - Answers B
The net hydrostatic pressure (HP) is the hydrostatic pressure in the _____ minus hydrostatic pressure in
the _______.
A. capillary; interstitial fluid
B. interstitial fluid; capillary - Answers A
Which of the following would reflect the typical net hydrostatic pressure (HP) at the arterial end of the
capillary?
A. 34 mm Hg
B. 1 mm Hg
C. 12 mm Hg - Answers A
The colloid osmotic pressure in the capillary is caused by _______.
A. blood pressure
B. proteins in the blood - Answers B
Which net pressure draws fluid into the capillary?
A. net hydrostatic pressure
B. net osmotic pressure - Answers B
Reabsorption of fluid into the capillary takes place at the arterial end or venous end of the capillary?
A. arterial
B. venous - Answers B
Where are the sensors for the arterial baroreceptor reflex located?
A. carotid sinus and aortic arch
B. the sympathetic and parasympathetic nervous systems
C. cardiovascular centers in the medulla oblongata - Answers A
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