blastema

/bla-stee-muh/US // blæˈsti mə //UK // (blæˈstiːmə) //

肿块,爆炸性水肿,肿胀,爆炸物

Definitions

n.名词 noun

1
plural blas·te·mas, blas·te·ma·ta [bla-stee-muh-tuh]. /blæˈsti mə tə/. Embryology.
- : an aggregation of cells in an early embryo, capable of differentiation into specialized tissue and organs.

In animals, he says, the endogenous method is rare, and the customary origin is in an external blastema.
The first stage corresponds to the process of organization, the gelatine representing the blastema, and the drop the nucleus.
This mass of mesoblastic cells may be called the metanephric blastema.
He says the abnormal cell-forms present arise in some other way than by free cell-development out of an exuded blastema.
My first doubts of the blastema doctrine date from my researches on tubercle.