An early non-mammalian embryo that follows the MORULA stage. A blastula resembles a hollow ball with the layer of cells surrounding a fluid-filled cavity (blastocele). The layer of cells is called BLASTODERM.

Annotation

non-mammalian only; mammalian, use BLASTOCYST

DUI

D036703 MeSH Browser

CUI

M0405773

Previous indexing

Blastocyst (1980-2002); Embryo, Nonmammalian (1975-2002)

History note

2003; use BLASTOCYST 1980-2002

Public note

2003; see BLASTOCYST 1980-2002