Synaptic connections of a low-threshold mechanoreceptive primary neuron within the trigeminal subnucleus oralis

Tomosada Sugimoto, Yoshitaka Nagase, Takahiko Nishiguchi, Seiichiro Kitamura, Yoshio Shigenaga

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The central axon of a primary afferent neuron that responded to indentation of the glabrous skin of the lower lip in a slowly adapting fashion was intra-axonally injected with horseradish peroxidase. The labeled terminal within the subnucleus oralis was examined electron microscopically. The labeled ending had a pale axoplasm and contained clear spherical synaptic vesicles. The labeled ending formed a synaptic triad with a dendrite and an unlabeled axonal ending with pleomorphic vesicles (a mixture of oval, flattened and dense core vesicles). The labeled primary ending was presynaptic only to the dendrite, while the unlabeled ending was presynaptic to both the dendrite and the labeled primary ending.

Original languageEnglish
Pages (from-to)338-342
Number of pages5
JournalBrain Research
Volume548
Issue number1-2
DOIs
Publication statusPublished - May 10 1991
Externally publishedYes

Fingerprint

Dendrites
Neurons
Afferent Neurons
Synaptic Vesicles
Secretory Vesicles
Horseradish Peroxidase
Lip
Axons
Electrons
Skin

Keywords

  • Primary neuron
  • Subnucleus oralis
  • Trigeminal nerve
  • Ultrastructure

ASJC Scopus subject areas

  • Developmental Biology
  • Molecular Biology
  • Clinical Neurology
  • Neuroscience(all)

Cite this

Synaptic connections of a low-threshold mechanoreceptive primary neuron within the trigeminal subnucleus oralis. / Sugimoto, Tomosada; Nagase, Yoshitaka; Nishiguchi, Takahiko; Kitamura, Seiichiro; Shigenaga, Yoshio.

In: Brain Research, Vol. 548, No. 1-2, 10.05.1991, p. 338-342.

Research output: Contribution to journalArticle

Sugimoto, Tomosada ; Nagase, Yoshitaka ; Nishiguchi, Takahiko ; Kitamura, Seiichiro ; Shigenaga, Yoshio. / Synaptic connections of a low-threshold mechanoreceptive primary neuron within the trigeminal subnucleus oralis. In: Brain Research. 1991 ; Vol. 548, No. 1-2. pp. 338-342.
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