释义 |
DictionarySeepolar bodyEncyclopediaSeePolar Bodypolocyte
po·lar bod·yone of two small cells formed by the first and second meiotic division of oocytes; the first is usually released just before ovulation, the second not until discharge of the oocyte from the ovary; in mammals, the second polar body may fail to form unless the oocyte has been penetrated by a sperm. Synonym(s): polar cell, polar globule, polocytepolocyte (po'lo-sit) [Gr. polos, pole, + kytos, cell] Polar body. |