perikaryon

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Related to perikarya: astrocyte, Purkinje cells

perikaryon

 [per″ĭ-kar´e-on]
the cell body of a neuron; called also neurosome.

per·i·kar·y·on

, pl.

per·i·kar·y·a

(per'i-kar'ē-on, -ă),
1. The cytoplasm around the nucleus, such as that of the cell body of nerve cells.
2. The body of the odontoblast, excluding the odontoblastic process.
3. The cell body of the nerve cell, as distinguished from its axon and dendrites.
[peri- + G. karyon, kernel]

perikaryon

(pĕr′ĭ-kăr′ē-ŏn′, -ən)
n. pl. peri·karya (-kăr′ē-ə)
The cell body of a neuron, containing the nucleus and organelles.

per′i·kar′y·al (-ē-əl) adj.

per·i·kar·y·on

, pl. perikarya (per'i-kar'ē-on, -ă)
1. The cytoplasm around the nucleus, such as that of the cell body of nerve cells.
2. The body of the odontoblast, excluding the dentinal fiber.
3. The cell body of the nerve cell, as distinguished from its axon and dendrites.
[peri- + G. karyon, kernel]

perikaryon

1. The PROTOPLASM surrounding the nucleus of a cell.
2. The cell body of a neuron containing the nucleus.
References in periodicals archive ?
We introduced the term massive submucosal ganglia to refer to submucosal ganglia containing at least 20 perikarya in 1 histologic section.
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).
Coen, "Brainstem projections to the medial preoptic region containing the luteinizing hormone-releasing hormone perikarya in the rat.
It decreased during the night and was accompanied by increase in the area of AVP perikarya but not by changes in the number of synapses [89].
Abnormally phosphorylated NFs accumulate in the perikarya and the phospho-NF aggregates can thus become cytotoxic by the enduring impairment of axonal transport of NFs [226, 227].
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).
A single brain showed subtle A[Beta] punctate aggregates in the neuronal perikarya in the absence of extracellular deposits of A[Beta].
The present study was therefore designed to define chemical expression of somatostatin in the sympathetic perikarya innervating the porcine stomach prepyloric area in the physiological state, during acetylsalicylic-acid-induced gastritis and experimentally induced hyperacidity and following partial stomach resection.
All MAP-2 immunoreactive processes that emerged from the cell perikarya (first level processes) were not considered in the discrimination procedures so that axons and axon hillock were not included in the measurements.