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With Particular Reference to the Macula Lutea: An Electron-Microscopic Study

BEN S. FINE, M.D.

Arch Ophthalmol. 1963;69(1):83-96.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Typically, a neuron has one or more dendrites, a single axon, a cell body (perikaryon), and a nucleus. By electron microscopy¹ the cytoplasmic components of a neuronal cell body have been characterized by the presence of aggregates of short segments of granular endoplasmic reticulum (Nissl substance^1,2) surrounded by clusters of similar but unattached granules, the ribonucleoprotein particles (RNP), ("Palade granules," or ribosomes), the presence of an unusually large Golgi apparatus, intracytoplasmic filaments, and, usually, a number of electrondense granules.^1,3-6

The neuronal perikarya present in the innermost layer of retinal cells are similar in appearance to the large neuronal perikarya found in various ganglia and have therefore become known as "ganglion cells." These ganglion cells make up, for the most part, a single layer of neuronal cell bodies lying between the nerve fiber layer (their axons) and the inner plexiform layer (in part, their dendrites). In the macula, . . . [Full Text PDF of this Article]

Author Affiliations
Washington, D.C.

From the Ophthalmic Pathology Branch, Armed Forces Institute of Pathology.

Footnotes
Submitted for publication June 6, 1962.

This investigation was supported in part by research grants, Project Nos. 6x59-01-001 and DAMEDDH-61-51, from the Medical Research and Development Command, U.S. Army, Washington, D.C.

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