Chemoreception pp 247-253 | Cite as

Dye and Electric Coupling between Carotid Nerve Terminals and Glomus Cells

  • R. G. Jiang
  • Carlos Eyzaguirre
Conference paper
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 536)


Synaptic blockers are rather ineffective in blocking the carotid nerve discharge elicited by “natural” stimuli such as hypoxia, hypercapnia or acidity. At the same time, these drugs are quite effective in eliminating the effects produced by exogenous applications of excitatory transmitters. It is likely that the release of multiple transmitters by the natural stimuli prevents a single synaptic blocker from being effective. However, we propose an additional mechanism for this failure: electric coupling between carotid nerve terminals and glomus cells via gap junctions.


Tyrosine Hydroxylase Nerve Terminal Carotid Body Electric Coupling Lucifer Yellow 
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Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • R. G. Jiang
    • 1
  • Carlos Eyzaguirre
    • 1
  1. 1.Department of PhysiologyUniversity of Utah School of MedicineSalt Lake CityUSA

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