Sympathoadrenal preganglionic neurons in the adult rabbit send their dendrites into the contralateral hemicord

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12 Citations (Scopus)

Abstract

Sympathetic preganglionic neurons projecting to the adrenal medulla of the adult rabbit were retrogradely labelled with horseradish peroxidase. Preganglionic neurons were located in thoracic spinal cord segments T3-T12, peaking in number at T8, and only ipsilateral to the side of injections. However, retrogradely labelled dendritic processes of preganglionic neurons in the intercalated nucleus pars paraependimalys, the intercalated nucleus, and possibly even in the intermediolateral cell column, were observed in the contralateral hemicord. This suggests that the activity of sympathoadrenal preganglionic neurons could be modulated by both ipsilaterally and contralaterally descending pathways.

Original languageEnglish
Pages (from-to)193-198
Number of pages6
JournalJournal of the Autonomic Nervous System
Volume30
Issue number3
DOIs
StatePublished - Jan 1 1990

Fingerprint

Dendrites
Rabbits
Neurons
Adrenal Medulla
Interneurons
Horseradish Peroxidase
Spinal Cord
Thorax
Injections

Keywords

  • Dendritic processes
  • Horseradish peroxidase
  • Rabbit
  • Spinal cord
  • Sympathoadrenal preganglionic neurons

ASJC Scopus subject areas

  • Physiology
  • Clinical Neurology
  • Neuroscience(all)

Cite this

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title = "Sympathoadrenal preganglionic neurons in the adult rabbit send their dendrites into the contralateral hemicord",
abstract = "Sympathetic preganglionic neurons projecting to the adrenal medulla of the adult rabbit were retrogradely labelled with horseradish peroxidase. Preganglionic neurons were located in thoracic spinal cord segments T3-T12, peaking in number at T8, and only ipsilateral to the side of injections. However, retrogradely labelled dendritic processes of preganglionic neurons in the intercalated nucleus pars paraependimalys, the intercalated nucleus, and possibly even in the intermediolateral cell column, were observed in the contralateral hemicord. This suggests that the activity of sympathoadrenal preganglionic neurons could be modulated by both ipsilaterally and contralaterally descending pathways.",
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AU - Vera, Pedro L.

AU - Hurwitz, Barry

AU - Schneiderman, Neil

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N2 - Sympathetic preganglionic neurons projecting to the adrenal medulla of the adult rabbit were retrogradely labelled with horseradish peroxidase. Preganglionic neurons were located in thoracic spinal cord segments T3-T12, peaking in number at T8, and only ipsilateral to the side of injections. However, retrogradely labelled dendritic processes of preganglionic neurons in the intercalated nucleus pars paraependimalys, the intercalated nucleus, and possibly even in the intermediolateral cell column, were observed in the contralateral hemicord. This suggests that the activity of sympathoadrenal preganglionic neurons could be modulated by both ipsilaterally and contralaterally descending pathways.

AB - Sympathetic preganglionic neurons projecting to the adrenal medulla of the adult rabbit were retrogradely labelled with horseradish peroxidase. Preganglionic neurons were located in thoracic spinal cord segments T3-T12, peaking in number at T8, and only ipsilateral to the side of injections. However, retrogradely labelled dendritic processes of preganglionic neurons in the intercalated nucleus pars paraependimalys, the intercalated nucleus, and possibly even in the intermediolateral cell column, were observed in the contralateral hemicord. This suggests that the activity of sympathoadrenal preganglionic neurons could be modulated by both ipsilaterally and contralaterally descending pathways.

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