44. The major regulatory center of the autonomic system is, according to many sc

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44. The major regulatory center of the autonomic system is, according to many scientists, the since this brain region has functions, such as control of body temperature, that require appropriate activation of sympathetic and parasympathetic nerves. B. thalamus C midbrain D.hypothalamus cerebral arteries since 45. A defect in nitric oxide synthetase gene may result in reducedof nitric oxide production would be impaired. ?.vasodilation B. vasoconstriction C. sleep D. feeding 46. Epinephrine is a A. sympathetic neurotransmitter. B. sympathomimetic hormone.. C. parasympathetic neurotransmitter. D. All of the choices are correct

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Answer:

44) The major regulatory center of the autonomic system is, according to many scientists, is the hypothalamus since this brain region has functions, such as control of body temperature, that require appropriate activation of sympathetic and parasympathetic nerves.

45) A defect in nitric oxide synthetase gene may result in reduced vasodilation of cerebral arteries since nitric oxide production would be impaired.

46) Epinephrine is a:

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