The healing of nerves / by Charles A. Ballance ... and Purves Stewart ... Illustrated by sixteen plates and one figure in the text.

  • Ballance, Charles A. (Charles Alfred), Sir, 1856-1936.
Date:
1901
Catalogue details

Licence: Public Domain Mark

Credit: The healing of nerves / by Charles A. Ballance ... and Purves Stewart ... Illustrated by sixteen plates and one figure in the text. Source: Wellcome Collection.

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    OpBsERVATION 16 Cat. Sciatic nerve. Divided and sutured immediately. 2 weeks. (a2) Distal segment.—The medullary sheaths are reduced to a mass of longitudinally-arranged oblong or globular bodies, granular in appearance, with here and there a large deeply-staining ovoid nucleus situated either amongst the granular material or more usually to one side of it. The changes are equally intense in the entire length of the distal portion. (4) The proximal segment of the nerve shows the old sheaths swollen and broken up into globular or ovoid masses at their free ends. At the lower end of the proximal segment new myelin sheaths are now evident, growing downwards within the canals formed by old neurilemma sheaths. When only one young myelin sheath occupies an old neurilemma, it does not course down its centre but lies close to the neurilemma. Often a whole leash of new myelin sheaths is seen within a single old neurilemma. Here and there, below the free ends of the young sheaths, shorter segments of young sheaths are present, which have not yet joined on to the central sheaths. These isolated lines run longitudinally and are situated just beneath a neurilemma which, higher up, corresponds