Circulatory System 2 Question Preview (ID: 1633)
Heart Anatomy And Physiology.
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Which of the following vessels carrier blood from the lungs to the heart?
a) aorta
b) pulmonary artery
c) pulmonary vein
d) inferior vena cava
The order of blood flow through the vessels is:
a) arterioles, venules, capillaries, arteries, and veins.
b) arteries, arterioles, capillaries, venules, and veins.
c) veins, venules, capillaries, arterioles, and arteries.
d) arterioles, arteries, capillaries, veins, and venules.
The ECG deflection wave produced during repolarization(relaxation) of the ventricle is the:
a) P wave.
b) QRS complex.
c) T wave.
d) U wave.
In taking the pulse, the artery most commonly used is the _____.
a) radial
b) brachial
c) femoral
d) carotid
Blood flow through the veins is regulated by ____.
a) one-way valves in the veins.
b) precapillary sphincters.
c) thick, muscular walls.
d) tunica intima
If the SA node were to stop functioning and the AV node were to take over, what would be the overall effect on the heart?
a) ventricular fibrillations
b) increased heart rate, around 120 BPM
c) slower heart rate, around 50 BPM
d) atrial fibrillations
The normal pattern of impulse conduction through the heart is:
a) AV node, SA node, bundle of His, and Purkinje fibers.
b) AV node, SA node, Purkinje fibers, and bundle of His.
c) SA node, AV node, Purkinje fibers, and bundle of His.
d) SA node, AV node, bundle of His, and Purkinje fibers.
Which of the following is not an atrioventricular valve?
a) Aortic
b) Mitral
c) Bicuspid
d) Tricuspid
The saclike structure around the heart is the:
a) epicardium.
b) myocardium.
c) endocardium.
d) pericardium.
If someone receives a traumatic injury to the neck and blood shots out of their neck in strong, regular bursts, which blood vessels has most likely been injured?
a) jugular vein
b) aorta
c) carotid artery
d) subclavian vein
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