دانلود کتاب سازمان توپوگرافی نوروپیل های پکتین در عقرب ها: آنالیز آوران شیمی حسی و الگوی برآمدگی در سیستم عصبی مرکزی

سال انتشار: 2019

تعداد صفحات: 57

زبان فایل: انگلیسی

فرمت فایل: pdf

حجم فایل: 4MB

ناشر: Springer Spektrum

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.