Blastula
Of embryo. May also be referred to as blastosphere.
Early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs.
This concept's ID is @1~7334
Contains
- trophoblast
The membrane that forms the wall of the blastocyst in early development; aids implantation...
- blastocoel
The fluid-filled cavity inside a blastula.
- blastocyst
The blastula of a placental mammal in which some differentiation of cells has occurr...