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Electron Microscopic Observations of the Nucleus, Glial Dome, and Meninges of the Rat Acoustic Nerve by Muriel D. Ross; William Burkel is a Medicine article available to read on EtoBox.

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The rat acoustic nerve is separated into central and peripheral portions by an astrocytic glial dome which is convex peripheralward. The long central portion is of typical central nervous system structure with narrow extracellular space (100-200 A in width), oligodendrocytes and astrocytes. The glial dome is penetrated by acoustic nerve fibers at a node of Ranvier; the basal lamina of the astrocytes is reflected back over the peripheral Schwann cells at this site. Centrally, the myelin is thinner than peripherally. Acoustic nerve neurons, ranging in size from 25-60 P, occur in the central portion of the nerve and may be divided into two groups based upon size and density of organelles: large and medium-sized. All the neurons possess an eccentric nucleus and a peripheral clear zone in the perikaryon beneath which Nissl substance is aggregated, but the medium-sized neurons have fewer organelles than the large cells. Dendrites and axons are similar in ultrastructure. While collagenous fibrils, fibroblasts, Schwann cells and extensive extracellular space occur in the peripheral portion of the nerve, no structure corresponding to perineurium or epineurium exists. Instead, dura mater sur

Who reads Electron Microscopic Observations of the Nucleus, Glial Dome, and Meninges of the Rat Acoustic Nerve?

Author

Muriel D. Ross; William Burkel

Publisher

Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0002-9106)

Published

1971

Language

EN

Field

Medicine (Health Sciences)