Indirect and Direct Wallerian Degeneration in the Intramedullary Root Fibres of the Hypoglossal Nerve

An Electron Microscopical Study in the Kitten

Nonfiction, Health & Well Being, Medical
Cover of the book Indirect and Direct Wallerian Degeneration in the Intramedullary Root Fibres of the Hypoglossal Nerve by H. Aldskogius, Springer Berlin Heidelberg
View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart
Author: H. Aldskogius ISBN: 9783642658679
Publisher: Springer Berlin Heidelberg Publication: June 29, 2013
Imprint: Springer Language: English
Author: H. Aldskogius
ISBN: 9783642658679
Publisher: Springer Berlin Heidelberg
Publication: June 29, 2013
Imprint: Springer
Language: English

In the previous study (Part I) a description was given of the ultrastructural changes occurring during indirect Wallerian degeneration in the intramedullary root fibre region of the kitten hypoglossal nerve. One of the striking features of this degeneration process was the appearance at an early stage of micro­ glial cells completely covered by myelin, which apparently participated in phago­ cytosis of degenerating axoplasm and to a small extent of their own myelin covering. Evidence was obtained indicating that the numerous degenerating glial cells seen somewhat later in the degeneration process were derived from these myelin-covered microglial cells. Since glial cells of the type described in the previous study have never been implicated in the process of direct Wallerian degeneration, the possibility exists that they may in fact be characteristic for indirect Wallerian degeneration. However, this possibility cannot be adequately assessed unless our present rather scanty knowledge concerning the early glial reaction during direct Wallerian degeneration is extended. Therefore the present study has been undertaken to examine the ultrastructural changes during direct W allerian degeneration in the kitten, with particular reference to the possible occurrence of myelin-covered microglial cells and degenerating glial cells of the type described in the previous study (see Part I). Since no systematic ultra­ structural study on direct Wallerian degeneration in immature animals seem to exist, observations on changes in the myelinated nerve fibres and the different types of glial cells have been included.

View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart

In the previous study (Part I) a description was given of the ultrastructural changes occurring during indirect Wallerian degeneration in the intramedullary root fibre region of the kitten hypoglossal nerve. One of the striking features of this degeneration process was the appearance at an early stage of micro­ glial cells completely covered by myelin, which apparently participated in phago­ cytosis of degenerating axoplasm and to a small extent of their own myelin covering. Evidence was obtained indicating that the numerous degenerating glial cells seen somewhat later in the degeneration process were derived from these myelin-covered microglial cells. Since glial cells of the type described in the previous study have never been implicated in the process of direct Wallerian degeneration, the possibility exists that they may in fact be characteristic for indirect Wallerian degeneration. However, this possibility cannot be adequately assessed unless our present rather scanty knowledge concerning the early glial reaction during direct Wallerian degeneration is extended. Therefore the present study has been undertaken to examine the ultrastructural changes during direct W allerian degeneration in the kitten, with particular reference to the possible occurrence of myelin-covered microglial cells and degenerating glial cells of the type described in the previous study (see Part I). Since no systematic ultra­ structural study on direct Wallerian degeneration in immature animals seem to exist, observations on changes in the myelinated nerve fibres and the different types of glial cells have been included.

More books from Springer Berlin Heidelberg

Cover of the book Intelligent Fashion Forecasting Systems: Models and Applications by H. Aldskogius
Cover of the book Principles of Security and Trust by H. Aldskogius
Cover of the book Data Processing for the AHP/ANP by H. Aldskogius
Cover of the book Scanning SQUID Microscope for Studying Vortex Matter in Type-II Superconductors by H. Aldskogius
Cover of the book Atopic Palmoplantar Eczema by H. Aldskogius
Cover of the book Executive Control and the Frontal Lobe: Current Issues by H. Aldskogius
Cover of the book The Relevance of Manganese in the Ocean for the Climatic Cycles in the Quaternary by H. Aldskogius
Cover of the book Theoretical Chemical Engineering by H. Aldskogius
Cover of the book Fallsammlung zum Sachenrecht by H. Aldskogius
Cover of the book Entscheidungstheorie by H. Aldskogius
Cover of the book Political Competition, Innovation and Growth by H. Aldskogius
Cover of the book Das kleine Buch der Zahlen by H. Aldskogius
Cover of the book Fundamental Approaches to Software Engineering by H. Aldskogius
Cover of the book Multilayer Integrated Film Bulk Acoustic Resonators by H. Aldskogius
Cover of the book Global Emission Inventory and Atmospheric Transport of Black Carbon by H. Aldskogius
We use our own "cookies" and third party cookies to improve services and to see statistical information. By using this website, you agree to our Privacy Policy