Agents blocking or inhibiting the effect of the sympathetic nervous system are
a. anticholinergic.
b. adrenergic.
c. parasympatholytic.
d. sympatholytic.
ANS: D
Health Professions
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A good EMG should have a common mode rejection ratio of
A) 10:1 B) 1:1 C) 100:1 D) 1000:1
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Which of the following statements regarding the heart is correct?
A. The heart can tolerate an interruption of oxygen for 5 minutes. B. The heart is under the control of the autonomic nervous system. C. The heart relies on an external electrical source to function correctly. D. The heart receives its blood supply from the pulmonary arteries.
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