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

/peri·kary·on/ (-kar´e-on) the cell body as distinguished from the nucleus and the processes; applied particularly to neurons.

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.

perikaryon

[per′iker′ē·on]
Etymology: Gk, peri + karyon, nut
the cytoplasm of a cell body exclusive of the nucleus and any processes, specifically the cell body of a neuron. Also called cyton. perikaryontic, 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.

perikaryon

the cell body of a neuron.
References in periodicals archive ?
The decrease in perikarya neuronal diameter was also demonstrated by stereological methods; mean Sv was 0,21 [micro]m-1 in control group and 0,32 [micro]m-1 in cortisol treated group.
A recent study on sipunculan neurogenesis revealed that the larvae of this taxon undergo cryptic segmentation by forming a paired ventral nerve cord with associated, subsequently appearing, segmental commissures and four pairs of perikarya (Kristof et al.
This ganglion measured about 19-20 [micro]m in diameter and did not contain any 5-HT LIR perikarya, but it did receive significant innervation in the form of a cerebro-pleural connective (cplc) (ca.
This ganglion contained 8-10 5-HT-LIR perikarya about 7.
Interpretation of this result is difficult since activated Erk1/2 within perikarya is probably segregated into separate nuclear and cytoplasmic compartments, and only in the latter can it associate with its cytoskeletal protein substrates.
Abnormal aggregates and tangles found in perikarya of brain neurons in such disorders as AD, Parkinson's, or ALS are deregulated "multimeric" complexes of cytoskeletal proteins, active kinases (Erk1/2, Cdk5, GSK3, PKA), other proteins ([alpha]-synuclein), and ubiquitin, suggesting that some abnormal proteins within the complex are undergoing degradation (Pallares-Trujillo et al.
These are arranged symmetrically on either side of a dense central plexus, with all perikarya appearing to contribute fibers to the plexus or the subciliary axon tract (Fig.
The most striking and consistently observed immunoreactive structures seen in all species were a pair of large (30-50 [[micro]meter] diameter) anterio-ventral perikarya on the surface of the neuropil of the ventral ganglion (VG) ([ILLUSTRATION FOR FIGURE 1D-F, H, I OMITTED]; [ILLUSTRATION FOR FIGURE 2 OMITTED]).
hameri), a group of three pairs of perikarya were seen on the anterio-dorsal surface of the VG.
The upper membranes of these flange cells are modified to form an extensive system of microvilli, although the lower flange surfaces and perikarya show no membrane-amplifying features that would suggest salt transport.
In addition, the CA is densely supplied with granule-containing juxtaligamental cell processes [ILLUSTRATION FOR FIGURE 1 OMITTED] belonging to perikarya that come into close contact with the nervous system (25).
The first two cell types have 3-5-[[micro]meter]-wide perikarya and a pair of simple basal processes, whereas the processes of the latter two types are more complex.