Undifferentiated cells resulting from cleavage of a fertilized egg (ZYGOTE). Inside the intact ZONA PELLUCIDA, each cleavage yields two blastomeres of about half size of the parent cell. Up to the 8-cell stage, all of the blastomeres are totipotent. The 16-cell MORULA contains outer cells and inner cells.

Annotation

do not confuse entry term BLASTOCYTES with BLASTOCYST

nepleť pojmy BLASTOCYTY a BLASTOCYSTA

DUI

D001757 MeSH Browser

CUI

M0002644

Previous indexing

Blastocyst (1974-1979); Cell Division (1966-1979); Zygote (1975-1979)

History note

80

Public note

80