Topographic organization of the pectine neuropils in scorpions : an analysis of chemosensory afferents and the projection pattern in the central nervous system /

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Bibliographic Details
Author / Creator:	Drozd, Denise, author.
Imprint:	Wiesbaden, Germany : Springer Spektrum, 2019.
Description:	1 online resource (xi, 47 pages) : illustrations
Language:	English
Series:	BestMasters, 2625-3577 BestMasters,
Subject:	Chemoreceptors. Scorpions -- Physiology. Chemoreceptors. Scorpions -- Physiology.
Format:	E-Resource Book
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/11781227

Hidden Bibliographic Details
ISBN:	9783658251550 3658251557 9783658251543
Notes:	Includes bibliographical references. Online resource; title from PDF title page (SpringerLink, viewed January 24, 2019).
Summary:	Chelicerates do not possess dedicated antennae like the Mandibulata but have evolved their second sets of appendages into the eponymous chelicerae. In scorpions, pectines are specialized comb-like structures, located on the ninth body segment, used for examining the substrate for chemo- and mechanosensory signals. The comb teeth, or pegs, are truncated beveled structures facing the substrate for probing, and are studded with numerous sensory receptors. Afferents from the pectines project into a distinct neuropil of the central nervous system, located behind the fourth walking leg neuropils. Denise Drozd analyzes afferents of single pegs in Mesobuthus eupeus by backfilling, combined with immunohistological labeling of neuropil regions. Her results suggest a topographic representation of the chemosensory fibers within the pectine neuropil instead of the typical chemotopic representation. Contents The Nervous System of Scorpions Structural Analysis of the Posterior Pectine Neuropil Projection Areas of Chemosensory Afferents Target Groups Lecturers and students in the fields of neurobiology, morphology, and zoology The Author Denise Drozd is a PhD candidate of Prof. Dr. Harald Wolf at the Institute of Neurobiology at Ulm University, Germany.
Standard no.:	10.1007/978-3-658-25155-0

Table of Contents:

Intro; Acknowledgement; Contents; Table of Figures; Abstract; 1 Introduction; 1.1 Chemo- and mechanoreception in arthropods; 1.1.1 Chemosensitive structures in arthropods; 1.1.2 Mechanosensitive structures in arthropods; 1.2 Processing of sensory information in the arthropod nervous system; 1.3 Sensory structures in arachnids; 1.4 Mechano- and chemoreceptors in arachnids; 1.4.1 Sensory appendages in scorpions
the pectines; 1.4.2 The nervous system of scorpions and the pectine neuropil; 1.5 Goal of this thesis; 2 Material and methods; 2.1 Animals
Mesobuthus eupeus
2.2 Backfill of afferents fibers2.3 Dissection, embedding and sectioning; 2.4 Immunohistochemistry and mounting; 2.5 Microscopy and image analysis; 3 Results; 3.1 Establishment of methods; 3.2 Structural analysis of the posterior pectine neuropil and associated tracts; 3.3 Projection areas of sensory afferents; 4 Discussion; 4.1 Discussion of methods; 4.2 Analysis of the architecture of the posterior pectine neuropil; 4.2.1 The structure of the disc-like area; 4.2.2 The structure of the cap-like area and the large lobulus area; 4.2.3 Somatotopic innervation of the pectine neuropil
5 Conclusion5.1 Outlook; References; Appendix; A 1 Chemicals; A 2 Solutions; A 3 Tools and equipment

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