perikaryon


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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 ?
Intracellular A[Beta] immunostaining of hippocampal and cortical neurons, detected with the A[Beta]1-28 and A[Beta]40 (R163) antibodies, was present in all DS cases, including subjects as young as 1 year This immunostaining had a distinct vesicular pattern and was strongest in the perikaryon (Figure 1), but was also present in neuronal processes.
Because this biochemical change could represent either a larger perikaryon or more neuritic extensions, we also assessed membrane protein markers in both absolute (membrane protein concentration) and relative (membrane/total protein) terms; an increase in extensions would augment membrane protein proportionally more than total protein.
Beginning on day 5, however, neuronal degeneration was seen in many areas, manifested by shrinkage of the perikaryon with intense eosinophilia of the cytoplasm, central chromatolysis, and condensation of the nucleus.