|
It is now over 200 years since Theodore Schwann first described
the cell which bears his name. Such early descriptions of nervous
system components were done without the powerful microscopes
we have today, yet Schwann and Ramon Y. Cajal made foundation
observations which still stand. Cajal’s papers, especially, show the
power of careful observation, an essential element of good science.
The Schwann cell has been historically underrated and poorly
understood. In particular, the myelin-forming Schwann cells or their
myelin are still often referred to as a simple ‘sheath’ for the neuron.
However, Schwann cells in all their complexity form essential partnerships
with neurons, and muscles. This is of particular relevance in
the case of the myelin-forming Schwann cell, an enormous cell that
expresses unique molecules and complex relationships related to maintenance
of the compact and non-compact myelin regions of its plasma
membrane. Schwann cells have other complex interactions, not least of
which are found where nerve terminals and muscle fibres form the
tripartite synapse in association with the perisynaptic Schwann cells.
There are also the poorly understood satellite cells that surround the
dorsal root ganglion nerve cell bodies, and of course the complexity of
non-myelinated Schwann cells and their axonal associations. |
|
|
 Mastering ExtJS - Second Edition
Learn how to develop advanced and efficient Internet applications with Ext JS
About This Book
-
Build a complete application with Ext JS from scratch to the production build
-
Excellent tips and tricks to make your web applications stand out
-
Written in an engaging and...
| | Python Developer's Handbook (Developer's Library)The Python Developer's Handbook is designed to expose experienced developers to Python and its uses. Beginning with a brief introduction to the language and its syntax, the book moves quickly into more advanced programming topics, including embedding Python, network programming, GUI toolkits, JPython, Web development, Python/C API, and more. Python... | | Excel 2010 Financials Cookbook
Excel is an extremely powerful tool that is made to handle many varieties of data. Regardless of the job you do, chances are you have had to use Excel at some time in your career, or you will. Regardless of your reason for using Excel, many users never realize the full potential of the software, relegating Excel to not much more than a list... |
|
