| 释义 |
DictionarySeepyknosisKaryopyknosis
Karyopyknosis shrinkage of a cell nucleus; one of the stages of necrobiosis preceding karyorrhexis and karyolysis. The karyopyknotic nucleus shrinks because of a loss of water.It stains more intensively with basic dyes than does the nucleus of a normally functioning cell, since the nucleic acid, which isresponsible for such staining, splits off from the nucleoproteins in the nucleus. karyopyknosis
karyopyknosis [kar″e-o-pik-no´sis] shrinkage of a cell nucleus, with condensation of the chromatin. adj., adj karyopyknot´ic.kar·y·o·pyk·no·sis (kar'ē-ō-pik-nō'sis), cytologic characteristics of the nucleus of a cell that is in the process of programmed or induced cell death. [karyo- + G. pyknos, thick, crowded, + -osis, condition] kar·y·o·pyk·no·sis (kar'ē-ō-pik-nō'sis) Cytologic characteristics of the superficial or cornified cells of stratified squamous epithelium in which there is shrinkage of the nuclei and condensation of the chromatin into structureless masses. [karyo- + G. pyknos, thick, crowded, + -osis, condition] |