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Peripheral Nervous System - Histology (view source)
Revision as of 17:51, 23 October 2011
, 17:51, 23 October 2011→Myelinated Nerve Longitudinal section
===Myelinated Nerve Longitudinal section===
===Myelinated Nerve Longitudinal section===
[[Image:WIKIVETmyelinatednervesinsmallfibreinlongittudinlsection.jpg|thumb|right|150px|Myelinated Nerve in Small Fibre, in Longitudinal Section - Copyright John Bredl]]
[[Image:WIKIVETmyelinatednervesinsmallfibreinlongittudinlsection.jpg|thumb|right|150px|Myelinated Nerve in Small Fibre, in Longitudinal Section - Copyright John Bredl]]
This image provides a longitudinal view of the edge of a nerve bundle. However, the image is not of sufficient quality to display a clear differentiation between the epineurium and perineurium. The epineurium is visible as the lighter strip at the base of the image.
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Within the nerve bundle itself, the individual nerve fibres have a characteristic 'wavy' appearance. There are also a number of nuclei visible within the image and these are nuclei belonging to Schwann cells or to cells found within the endoneurium. At this magnification it is possible to identify some elements of the nerves themselves. In some of the fibres it is possible to visualise a faint central tubular structure which represents the axon of the nerve. (One is visible in the 6th nerve down from the top of the image). The lighter brown element of each nerve represents the myelin sheath whilst the darker brown lines surrounding both side of each nerve represents the thin cytoplasm of the Schwann cell (neurilemma cell).
===Histology of Ganglion===
===Histology of Ganglion===