Which best defines cardiac output?
A. The end-diastolic volume minus the end-systolic volume
B. The volume of blood in the arterial tree at any moment in time
C. The output of the aortic arch baroreceptors
D. The product of the heart rate and the volume ejected from the ventricle during a cardiac cycle
E. The stroke volume divided by the heart rate
Answer: D
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Which muscle is not innervated by the plantar nerve?
A. Plantar interossei B. Extensor digitorum brevis C. Flexor hallucis brevis D. Flexor digitorum brevis E. Lumbricals
A hypertonic solution has a higher concentration of solutes and a lower concentration of H2O than an isotonic solution
Indicate whether the statement is true or false
The QRS complex on an ECG tracing represents
A) atrial depolarization. B) atrial repolarization. C) ventricular depolarization. D) ventricular repolarization. E) ventricular contraction.
Focus is a(n):
A) localized region B) unstable reaction C) substance causing death D) morbid disease