New types of synaptic connections in crayfish stretch receptor organs

an electron microscopic study

K. Elekes, Ernst Florey

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The synaptic input to crayfish (Orconectes limosus) stretch receptor neurons, and the synaptic interactions between the inhibitory and excitatory efferents were analysed by electron microscopy of serial sections. Several novel types of synaptic connections have been observed: (i) inhibitory synaptic input on the axon hillock and initial axon segment; (ii) serial synaptic terminals on the sensory cell body; (iii) simultaneous synaptic contacts of the same inhibitory terminal with sensory dendrites and muscle fibres; (iv) reciprocal synapses between the two types of inhibitory efferents; and (v) inhibitory synapses on the primary inhibitory axon. The possible functional significance of these synapses is discussed in the light of earlier electrophysiological and pharmacological findings.

Original languageEnglish
Pages (from-to)613-626
Number of pages14
JournalJournal of Neurocytology
Volume16
Issue number5
DOIs
Publication statusPublished - Oct 1987

Fingerprint

Astacoidea
Mechanoreceptors
Synapses
Electrons
Presynaptic Terminals
Dendrites
Axons
Electron Microscopy
Pharmacology
Neurons
Muscles
Axon Initial Segment

ASJC Scopus subject areas

  • Neuroscience(all)
  • Histology
  • Anatomy
  • Cell Biology

Cite this

New types of synaptic connections in crayfish stretch receptor organs : an electron microscopic study. / Elekes, K.; Florey, Ernst.

In: Journal of Neurocytology, Vol. 16, No. 5, 10.1987, p. 613-626.

Research output: Contribution to journalArticle

@article{55d723cfbbcb4dba93d211c8b6cd02f0,
title = "New types of synaptic connections in crayfish stretch receptor organs: an electron microscopic study",
abstract = "The synaptic input to crayfish (Orconectes limosus) stretch receptor neurons, and the synaptic interactions between the inhibitory and excitatory efferents were analysed by electron microscopy of serial sections. Several novel types of synaptic connections have been observed: (i) inhibitory synaptic input on the axon hillock and initial axon segment; (ii) serial synaptic terminals on the sensory cell body; (iii) simultaneous synaptic contacts of the same inhibitory terminal with sensory dendrites and muscle fibres; (iv) reciprocal synapses between the two types of inhibitory efferents; and (v) inhibitory synapses on the primary inhibitory axon. The possible functional significance of these synapses is discussed in the light of earlier electrophysiological and pharmacological findings.",
author = "K. Elekes and Ernst Florey",
year = "1987",
month = "10",
doi = "10.1007/BF01637654",
language = "English",
volume = "16",
pages = "613--626",
journal = "Journal of Neurocytology",
issn = "0300-4864",
publisher = "Kluwer Academic Publishers",
number = "5",

}

TY - JOUR

T1 - New types of synaptic connections in crayfish stretch receptor organs

T2 - an electron microscopic study

AU - Elekes, K.

AU - Florey, Ernst

PY - 1987/10

Y1 - 1987/10

N2 - The synaptic input to crayfish (Orconectes limosus) stretch receptor neurons, and the synaptic interactions between the inhibitory and excitatory efferents were analysed by electron microscopy of serial sections. Several novel types of synaptic connections have been observed: (i) inhibitory synaptic input on the axon hillock and initial axon segment; (ii) serial synaptic terminals on the sensory cell body; (iii) simultaneous synaptic contacts of the same inhibitory terminal with sensory dendrites and muscle fibres; (iv) reciprocal synapses between the two types of inhibitory efferents; and (v) inhibitory synapses on the primary inhibitory axon. The possible functional significance of these synapses is discussed in the light of earlier electrophysiological and pharmacological findings.

AB - The synaptic input to crayfish (Orconectes limosus) stretch receptor neurons, and the synaptic interactions between the inhibitory and excitatory efferents were analysed by electron microscopy of serial sections. Several novel types of synaptic connections have been observed: (i) inhibitory synaptic input on the axon hillock and initial axon segment; (ii) serial synaptic terminals on the sensory cell body; (iii) simultaneous synaptic contacts of the same inhibitory terminal with sensory dendrites and muscle fibres; (iv) reciprocal synapses between the two types of inhibitory efferents; and (v) inhibitory synapses on the primary inhibitory axon. The possible functional significance of these synapses is discussed in the light of earlier electrophysiological and pharmacological findings.

UR - http://www.scopus.com/inward/record.url?scp=0023203652&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0023203652&partnerID=8YFLogxK

U2 - 10.1007/BF01637654

DO - 10.1007/BF01637654

M3 - Article

VL - 16

SP - 613

EP - 626

JO - Journal of Neurocytology

JF - Journal of Neurocytology

SN - 0300-4864

IS - 5

ER -