Electronic Resource
New York, NY [u.a.]
:
Wiley-Blackwell
The @Anatomical Record
163 (1969), S. 101-109
ISSN:
0003-276X
Keywords:
Life and Medical Sciences
;
Cell & Developmental Biology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Medicine
Notes:
The fine structure of satellite cells surrounding neurons in the superior cervical ganglia of the rabbit is described. These observations form a basis for the interpretation of fine structural changes which occur in the satellite cells after post-ganglionic section. Early changes consist of an increased number of micropinocytotic vesicles indicating an enhanced uptake of extracellular materials. The mitochondria increase in length and lie close to the plasma membranes, reflecting the increased energy requirement of these cells. Many develop intramitochondrial granules which may be concerned with the transport of water or ions. Later, at the height of chromatolysis, the satellite cells increase their quantity of granular reticulum and many possess agranular sub-surface cisternae whose function may be to direct material synthesised in the satellite cells to the nerve cell surface. Individual layers of satellite cell cytoplasm may slide over one another to accommodate the increased size of the neurons during chromatolysis. The satellite cell processes appear thickened and contain large numbers of fine filaments which may be formed by the breakdown of microtubules.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/ar.1091630112
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