Abstract: As regards to regeneration of NSCs in the developing cerebral ganglion scientists opined that this process occurs through evolution similar to the sequence of changes with normal growth, de novo by the mitotic proliferation and differentiation of unspecialized cells (neoblast) already present in the central nervous system.Earthworm through their activities of feeding, burrowing and casting activities modify the physical, chemical and biological properties of soil, this supporting above ground vegetation. Soil physical property affected include aggregate stability and porosity, while soil biological and chemical properties modified includes nutrient cycle, formation of plant-available nutrients, organic matter dynamics, pH, microbial and faunal activities, decomposition rate etc. Consequently above ground plant production may be affected by activities of earthworms in which three main ecological groups can be recognized: epigeic, anecic, and endogeic. The SEM observations on both the sub and supraoesophgeal ganglia of the species under study are made. This has the relevance with reference to morpho-anatomical relationship of cellular complements in relation to the intraganglionic capillaries and accumulation of NSM –neurosecretory materials within ganglion in question.The brain represents the detailed surface profile with particular reference to its posterodorsal region. Indeed ring like elevation from where divergent of processes constitute the vascular complex clarifies the extensive vascularization of the cerebral ganglion. In case of suboesophageal ganglion surface conFiguration shows both depression and elevation.
Keywords: Neurosecretory Cells (NSC), neoblast, mitotic proliferation: epigeic, anecic, and endogeic.
Title: Ultramicroscopic Changes in the Secretory Dynamics of the Neurosecretory Cell in the Earthworm (Metaphire Peguana)
Author: Trijit Nanda, Malabika Bhattacharjee
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148 (online)
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