Distribution and specific central projections of mechanoreceptors in the thorax and proximal leg joints of locusts

@article{Brunig2004DistributionAS,
  title={Distribution and specific central projections of mechanoreceptors in the thorax and proximal leg joints of locusts},
  author={Peter Br{\"a}unig and Reinhold Hustert and Hans-Joachim Pfl{\"u}ger},
  journal={Cell and Tissue Research},
  year={2004},
  volume={216},
  pages={57-77}
}
SummaryThe mechanoreceptive supply of ventral thoracic parts and proximal leg joints of the pro- and metathorax of two locust species has been studied with the help of a modification of the axonal infusion technique with cobaltous chloride, which permits staining of the peripheral nervous system of an entire segment. The number, location, and innervation of serially homologous chordotonal organs (CO), strand receptors (SR), multipolar sensilla (MS), hair plates (HP) and clustered campaniform… 
Distribution and specific central projections of mechanoreceptors in the thorax and proximal leg joints of locusts
TLDR
The majority of central branching patterns reveal a high degree of uniformity if compared within a population, within populations of one segment, and between populations of different legs.
Distribution and specific central projections of mechanoreceptors in the thorax and proximal leg joints of locusts
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Tactile hairs on the locust thorax can be divided into two classes by their external morphology and their central projection pattern; fibers from meso- and metathoracic hairs, located close to the longitudinal midline of the animal, may terminate in the contralateral VAC and with one branch project to the next anterior ganglion through the ipsilateral connective.
Central projections of leg sense organs inCarausius morosus (Insecta, Phasmida)
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The central projections of leg proprioceptors important in resistance reflexes and in the control of leg movement in the stick insect are described and compared with those from other insects and arthropods.
The specificity of central nervous projections of locust mechanoreceptors
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The central projections of hairplates and groups of campaniform sensilla of various parts of the locust head, neck, and thorax are compared and specificity of the projections due to different morphological types of sensory neurones may influence shape and extent of segmental ramifications.
Internal receptors in insect appendages project directly into a special brain neuropile
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Novel afferent neurons in distal segments of locust legs that project directly into the brain without forming ramifications in other ganglia are described, indicating that the neurons convey information about an internal physiological parameter directly into a special brain neuropile.
External sensilla of the locust abdomen provide the central nervous system with an interganglionic network
TLDR
Of the contributing types of sensilla, three were previously unknown for locust pregenital segments: tactile mechanosensory hairs with dual innervation, external proprioceptors of the hairplate type covered by intersegmental membranes and single campaniform sensilla that monitor cuticular strain in sternites and tergites.
Tactile hairs and leg reflexes in wandering spiders: physiological and anatomical correlates of reflex activity in the leg ganglia
TLDR
How the various interneurons identified here may be involved in the local reflex response and in the coordinated, intersegmental reflex behavior that is observed when the unrestrained spider uses all 8 legs to raise its body is discussed.
The afferent projection of mesothoracic bristle hairs in the cricket,Acheta domesticus
SummaryOne of the sensory systems of the thoracic segments of the cricket,Acheta domesticus, was investigated by using cobalt to stain the axonal arborizations of bristles of various types and
Parallel effects of joint receptors on motor neurones and intersegmental interneurones in the locust
  • G. Laurent
  • Biology
    Journal of Comparative Physiology A
  • 2004
TLDR
These results indicate that proprioceptive inputs from the tarsal joint receptors are transmitted in parallel and monosynaptically to tartsal motor neurones and to the intersegmental interneurones.
The organization of plurisegmental mechanosensitive interneurons in the central nervous system of the wandering spider Cupiennius salei
TLDR
A comparison between the response properties of certain plurisegmental interneurons and their parent longitudinal tracts suggests that the tracts themselves do not reflect a modality-specific organization.
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