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Which is not of the heart?
Both atria receive their blood supply from branches of the right and left coronary arteries
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On a ECG, the T wave represents...
repolarization of ventricles
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Blood from the superior vena cava enters which part of the heart?
Right atrium
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Which blood vessels has the largest total cross-sectional area?
capillary
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Depolariztion of the ventricle is...
clearly depicted by the QRS complex
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As the external iliac artery enters the thigh, its name changes to the artery.
femoral
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The pulm arteries carry blood to the...
lungs
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The normal pattern of impulse conduction thru heart is...
SA node, AV node, bundle of HIS, Purkinje fibers
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The effect of what substance is to increase the total blood volume?
ADH and aldosterone
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Semilunar valves open into...
the aorta and the pulm artery
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The muscular layer of the heart is...
the myocardium
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Which would cause a decrease in blood viscosity?
Marked anemia
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The correct order of the layers of the heart from deep to superficial is...
endocardium, myocardium, and epicardium
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During BP reading, the first sound you hear is...
the systolic sound, indicating contraction of the ventricles
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The pulse in the wrist is felt over which artery?
radial
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Cardiac output is determined by the...
stroke volume and heart rate
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