Summary
The trachea receives excitatory cholinergic innervation from the vagus nerve and the stellate ganglion. Inhibitory adrenergic fibres have the same sources. Those in the vagus nerve probably derive from high vagosympathetic anastomoses. Nonadrenergic inhibitory fibres have a preganglionic vagal supply.
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This study has been supported by grants from Magnus Bergvall Memorial Found and Harald and Greta Jeansson Foundation.
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Hammarström, M., Sjöstrand, N.O. Pathways for excitatory and inhibitory innervation to the guinea-pig tracheal smooth muscle. Experientia 35, 64–65 (1979). https://doi.org/10.1007/BF01917879
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DOI: https://doi.org/10.1007/BF01917879