If stroke volume is 80 ml and the heart rate is 70 beats per minute, the cardiac output is
a. 150 ml/min
b. 560 ml/min
c. 5,600 ml/min
d. 8,700 ml/min
e. none of the above
C
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The exhaustion phase of the general adaptation syndrome (GAS) is characterized by
A) failure of electrolyte balance. B) an increasing ability to produce glucose from glycogen. C) increased pumping effectiveness of the heart. D) a sharp increase in motivation and energy. E) an increase in urine output.
Excess CSF is removed from the subarachnoid space by
A. the median aperture. B. microglia. C. astrocytes. D. arachnoid villi. E. the choroid plexus.
Scanning data, electrical monitoring, and clinical observations have shown that several cortical areas act as higher order integrative centers
A) for complex sensory stimuli and motor responses. B) that function more efficiently after a frontal lobotomy. C) in the left cerebral hemisphere in all individuals. D) in the frontal lobes of the cerebrum. E) None of the answers are correct
The large surface area of the inside of the small intestine means that this structure is
A. maladaptive in that it harbors bacteria. B. derived from an embryological structure that served a different function. C. well adapted for its physiological role in absorption. D. anatomically complex but physiologically simple.