[PDF] The Histogenesis Of The Superior Cervical Ganglion Cell eBook

Author :
Publisher :
Page : 558 pages
File Size : 43,63 MB
Release : 1921
Category : Comparative neurobiology
ISBN :

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Publishes papers on the anatomy and physiology of the nervouse system. Preference is given to papers which deal descriptively or experimentally with the nervous system, its structure, growth, and function.

Author : Ennio Pannese
Publisher : Springer Science & Business Media
Page : 122 pages
File Size : 28,96 MB
Release : 2013-11-11
Category : Medical
ISBN : 3642677509

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The earliest mention of a cell sheath enveloping the body of the neurons in sensory ganglia is probably the following description by Valentin: "Sowohl die Kugeln der Be legungsformation 1, als die Primitivfasem, werden von eigenthi. imlichen, sie isolirenden Scheiden umgeben, welche aile Stufen der Dicke von einer fast gar nicht mehr wahr nehrnbaren Zartheit bis zu einer ziemlich bedeutenden Starke durchlaufen. Diese Hill len sind aber immer zellgewebeartiger Natur" (1836, p 162). In some illustrations of the above mentioned paper the nuclei of the satellite cells adjacent to the surface of the nerve cell body, both in the trigeminal ganglion and in the ganglia of the vegeta tive nervous system, are clearly shown (Fig. lA). The author, however, miSinterpreted these nuclei as pigment granules (Pigmentkorperchen). A little later, Remak (1838) denied the existence of the perineuronal cell sheath. This prompted a ready reply from Valentin (1839), who offered a more detailed description of the perineuronal cell sheath, illustrated it with new drawings (Fig. IB), and gave a correct interpreta tion of the nuclei. In fact, he wrote: Fig. lA-B. Nerve cell bodies of sympathetic ganglia with the nuclei of the satellite cells on the neuronal surface. Redrawn from Valentin; A, 1836; B, 1839.

Author : P. Böck
Publisher : Springer Science & Business Media
Page : 328 pages
File Size : 20,33 MB
Release : 2012-12-06
Category : Medical
ISBN : 3642682081

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Our knowledge of chromaffin tissue has increased enormously since the last comprehensive treatise in this series was published in 1943, chiefly as a result of the development of new histological methods and technical improve ments. Less than 40 years have passed since the review by MAX WATZKA, and essentially only 25 years were required to accumulate an abundance of revolu tionizing findings: it was not until 1957 that the carotid body was first studied successfully with the electron microscope. In 1962 the technique of formalde hyde-induced fluorescence was introduced, yielding a view of adrenergic struc tures that was completely new and far better than that obtained with the chro maffin reaction. Immunohistochemistry made it possible to localize enzymes responsible for catecholamine synthesis and to detect peptide hormones. Autora diographic techniques were used at the level of the electron microscope, the method of chemical sympathectomy was introduced and still other technical improvements could be mentioned. I myself have been interested in chromaffin cells and sympathetic neurons since 1965, when I entered the Department of Histology, University of Vienna, as a medical student. Therefore I have not followed the developments mentioned above retrospectively, but have actually experienced them. Anyone who experi ences such a development comes to believe that he is well acquainted with the various results and interpretations and is thus capable of objectivity.