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octopamine
Octopamine is an organic chemical closely related to norepinephrine, and synthesized biologically by a homologous pathway. Its name derives from the fact that it was first identified in the salivary glands of the octopus.
In many types of invertebrates octopamine is an important neurotransmitter and hormone. In protostomes—arthropods, molluscs, and several types of worms—it substitutes for norephinephrine and performs functions apparently similar to those of norepinephrine in mammals, functions that have been described as mobilizing the body and nervous system for action. In mammals octopamine is found only in trace amounts, and no biological function has been solidly established for it. It is also found naturally in numerous plants, including bitter orange.
==Functions==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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