ISSN:
1573-9007
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract It is shown by the use of Golgi's method in Antonova's modification that the neuronal structure of the periaqueductal gray matter (PGM) in the frontal plane is characterized by the presence of small and medium-sized cells of "reticular type," which can be subdivided into three types: fusiform, triangular, and multipolar. On the basis of the visual distribution of these types of neurons and also of statistical analysis of 800 identified neurons, two regions can be distinguished: medial, directly surrounding the aqueduct of Sylvius, containing small neurons, among which the fusiform kind predominate significantly (P〈0.001), and a lateral region with larger neurons, with significantly (P〈0.001) more triangular cells. Neurons in the medial region show a characteristic and strong (P〈0.001) tendency for their dendrites to be oriented toward the lumen of the aqueduct, and through them the physiologically active substances of the CSF may influence the functional activity of neurons of PGM.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01052675
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