When ventricular pressure exceeds atrial pressure, the
A. ejection occurs.
B. atria pump blood into the ventricles.
C. ventricle is in diastole.
D. blood is pumped into the atrium.
E. AV valves close.
E
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Stimulation of which nerve reduces heart rate?
a) Cardiac accelerator nerve b) Hypoglossal nerve c) Spinal accessory d) Vagus nerve e) Phrenic nerve
Which system engages in mass activation?
A. Parasympathetic nervous system B. Sympathetic nervous system
Which vessels can act as a blood reservoir by adjusting their total capacity to accommodate variations in blood volume?
a. arteries. b. arterioles. c. capillaries. d. veins. e. lymph vessels.
The events that occur in the postabsorptive state collectively
A. decrease fat metabolism. B. maintain blood glucose levels. C. interconvert proteins to fats. D. assure adequate lipogenesis. E. maintain protein levels.