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GMS 6530 FINAL The Cardiovascular System questions with correct answers
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GMS 6530 FINAL The Cardiovascular System questions with correct answers
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GMS 6530 FINAL The Cardiovascular Systemquestions with correct answers
Which of the following lists the valves in the order through which the blood flows
from the vena cava through the heart?
Tricuspid, pulmonary semilunar, bicuspid, aortic semilunar
Mitral, pulmonary semilunar, bicuspid, aortic semilunar
Aortic semilunar, pulmonary semilunar, tricuspid, bicuspid
Bicuspid, aortic semilunar, tricuspid, pulmonary semilunar Correct Answer-
tricuspid, pulmonary semilunar, bicuspid, aortic semilunar
Which chamber initially receives blood from the systemic circuit?
Left atrium
Left ventricle
Right atrium
Right ventricle Correct Answer-right atrium
In which septum is it normal to find openings in the adult?
interatrial septum
interventricular septum
atrioventricular septum Correct Answer-atrioventricular septum
Which portion of the ECG corresponds to repolarization of the atria?
,P wave
QRS complex
T wave
atrial repolarization is masked by ventricular depolarization Correct Answer-atrial
repolarization is masked by ventricular depolarization
The cardiovascular centers are located in which area of the brain?
medulla oblongata
pons
mesencephalon (midbrain)
cerebrum Correct Answer-medulla oblongata
Which of the following is a negative inotrope?
Na+
K+
Ca2+
both Na+ and K+ Correct Answer-K+
In a healthy young adult, what happens to cardiac output when heart rate increases
above 160 bpm?
It increases.
It decreases.
It remains constant.
,There is no way to predict. Correct Answer-It decreases.
The force the heart must overcome to pump blood is known as ________.
preload
afterload
cardiac output
stroke volume Correct Answer-afterload
The endothelium is found in the ________.
tunica interna
tunica media
tunica externa
lumen Correct Answer-tunica interna
Closer to the heart, arteries would be expected to have a higher percentage of
________.
endothelium
smooth muscle fibers
elastic fibers
collagenous fibers Correct Answer-elastic fibers
Which of the following best describes veins?
, thick walled, small lumens, low pressure
thin walled, large lumens, low pressure
thin walled, small lumens, high pressure
thick walled, large lumens, high pressure Correct Answer-thin walled, large
lumens, low pressure
Venoconstriction increases which of the following?
blood pressure within the vein
blood flow within the vein
return of blood to the heart
all of the above Correct Answer-all of the above
Would stroke volume be expected to be largest in a patient with high or low blood
pressure, everything else being equal?
High
Low Correct Answer-Low
Which statement best describes the process of arteriosclerosis?
Buildup of plaques in blood vessels, restricting blood flow
Stiffening of blood vessels due to loss of elastic fibers Correct Answer-Stiffening
of blood vessels due to loss of elastic fibers
If you were to drink a liter of cola, the increased blood pressure due to increased
blood volume would be detected by _______.
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