If someone has a blood pressure reading of 110/70 mm Hg, their pulse pressure would be
A. 110 mm Hg.
B. 70 mm Hg.
C. 40 mm Hg.
D. 180 mm Hg.
E. 90 mm Hg.
C
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What causes the opening and closing of the heart valves?
A. The action of the papillary muscles and chordae tendineae B. A pressure difference on the two sides of the valve C. Turbulent flow in the atria and ventricles D. Na+ and K+ fluxes during ventricular depolarization E. Stimulation by the sympathetic and parasympathetic nerves
Collections of axons in the CNS that have a common origin and destination are called ________.
Fill in the blank(s) with the appropriate word(s).
Which level consists of related organs that work to achieve a common function?
A. Chemical level B. Tissue level C. Organ system level D. Cellular level E. Organ level
Which of the following represents the overall reaction for aerobic respiration?
A. C6H12O6 + 6 H2O ? 6 CO2 + 6 O2 B. C6H12O6 + 6 O2 ? 6 CO2 + 6 H2O C. 6 CO2 + 6 H2O ? C6H12O6 + 6 O2 D. 6 O2+ 6 H2O ? C6H12O6 + 6 CO2 E. C6H12O6 + 6 CO2 ? 6 O2 + 6 H2O