Diseases of the spinal cord.

  • Bramwell, Byrom, Sir, 1847-1931.
Date:
1882
Catalogue details

Licence: Public Domain Mark

Credit: Diseases of the spinal cord. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    division is not quite complete, for a narrow band of nervous tissue remains, towards the centre of the segment, separating the two fissures, and connecting the two lateral halves of which it (the segment) is made up. (See fig. 3.) AM F PMF Fig. 3. Transverse Section of a Spinal Segment in the Cervical region. AMF—Anterior median fissure. PMF—Posterior median fissure or septum. AWC—Anterior or white commissure. PGC—Posterior or grey commissure. CO—Central Canal. This commissural band is composed partly of grey and partly of white matter. (See fig. 4.) The white portion lies in front, at the bottom of the anterior median fissure, and is called the anterior or white commissure; the grey matter lies posteriorly between the anterior white commissure and the posterior median fissure or septum (for the posterior median fissure is seldom a fissure properly so called, but rather a septum of connective tissue, as represented in fig. 3), and is called the posterior or grey commissure} In the middle of the posterior or grey commissure the central canal of the spinal cord is placed. (See fig 5.) 1 Some writers give the term posterior grey commissure to that portion of the grey commissure which is situated behind the central canal, and call the part of the grey commissure which lies in front of the central canal the anterior grey commissure.