Identification of efferent-stimulus-responding neurons in the earthworm 3rd segmental nerve by lucifer yellow-CH backfilling.
The objective of the present study was to identify the mechanism for the decreased efferent reflex response recorded extracellularly from an earthworm 3rd segmental nerve after the nerve had been cut. Four neurons which showed a correlated decrease in their efferent responses were identified in the ventral nerve cord by the broken-microelectrode-backfilling method using Lucifer Yellow-CH. The long processes of these neurons extended into the 3rd nerve trunk. Thus, these neurons may represent an efferent link in this complicated reflex arc.
Chang
Y C
YC
Departamento de Fisiologia, Universidade Federal do Paraná, Curitiba, Brasil.
Assmé
Z
Z
Marchioro
M
M
D000200:Action Potentials / Q000502:physiology; D000818:Animals; D004558:Electric Stimulation; D009476:Neurons, Efferent / Q000502:physiology*; D009835:Oligochaeta / Q000502:physiology*; D012018:Reflex / Q000502:physiology*