perikaryon

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Related to perikarya: astrocyte, Purkinje cells

perikaryon

[¦per·ə′kar·ē‚än]
(cell and molecular biology)
A cytoplasmic mass surrounding a nucleus.
(neuroscience)
The body of a nerve cell, containing the nucleus.
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In addition, argyrophilic tangles were observed in perikarya and proximal neurites of neurons as far distal as the lumbar and sacral cord areas (42).
We determined by stereological methods the relation surface/volume (Sv) and the volumetric density (Vv= total surface area / surface of perikarya circumscribed in every field) (Weibel and Gomez, 1962; Weibel, 1979; Mandarimde-Lacerda, 1998,1999).
The cytoplasm of the perikarya, as described by Bullock and Horridge (1965), is so scanty it is difficult to visualize in ordinary preparations.
In particular, a MAT concentration of Cd supplied damaged external pyramidal neuron, as exhibited by a typically argyrophilic dark neuronal perikarya and often by a shrunken and folded appearance compared with little or no damage in controls (Figure 2d,h).
The antibody used to identify the Amp neurons labeled the ciliary bundles and probably did not label the perikarya of the Amp neurons, and thus the ultimate fate of these cells was not determined.
Hereby, molluscan-entoproct tetraneury is not merely restricted to the existence of four longitudinal nerve cords, but rather is defined by a nervous system that exhibits one pair of ventral (pedal) nerve cords with associated serotonergic perikarya and commissures, as well as one pair of lateral (visceral) nerve cords that do not run in the same plane as the pedal cords but more dorsal to them (Fig.
No cell bodies could be identified, suggesting that these fibers originate from perikarya found elsewhere.
The right cerebral ganglion of all specimens contained 12-15 immunoreactive perikarya in the 7.
The distribution of GABA-containing perikarya, fibers, and terminals in the forebrain and midbrain of pigeons, with particular reference to the basal ganglia and its projection targets.
Biochemically and immunocytochemically, the NF-220 is phosphorylated only in the axon, whereas a non-phosphorylated NF-180, together with NF60/70, is detected in the perikarya of the stellate ganglia (Tytell et al.
Sufficient tubulin antigen was sometimes present in the perikarya of the ampullary neurons to make them visible in confocal optical sections.
To resolve this cluster of perikarya and dense neuropile, rotations were calculated for three-dimensional confocal images (Fig.