No abstract available
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Animals
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Cerebral Aqueduct / drug effects*
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Injections, Spinal
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Methysergide / pharmacology
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Morphine / pharmacology*
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Neural Inhibition / drug effects
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Nociceptors / drug effects*
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Nociceptors / physiology
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Norepinephrine / physiology*
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Phentolamine / pharmacology
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Rats
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Receptors, Adrenergic / drug effects
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Receptors, Adrenergic / physiology*
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Receptors, Serotonin / drug effects
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Receptors, Serotonin / physiology*
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Serotonin / physiology*
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Spinal Cord / drug effects
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Spinal Cord / physiology*
Substances
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Receptors, Adrenergic
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Receptors, Serotonin
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Serotonin
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Morphine
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Norepinephrine
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Methysergide
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Phentolamine