Blastomere vs. Blastula

Blastomerenoun

(biology) Any cell that results from division of a fertilized egg.

Blastomerenoun

One of the segments first formed by the division of the ovum.

Blastomerenoun

any cell resulting from cleavage of a fertilized egg

Blastomere

In biology, a blastomere is a type of cell produced by cleavage (cell division) of the zygote after fertilization and is an essential part of blastula formation.

Blastulanoun

(embryology) An early form in the development of an embryo, consisting of a spherical layer of cells filled with fluid; a blastosphere.

Blastulanoun

That stage in the development of the ovum in which the outer cells of the morula become more defined and form the blastoderm.

Blastulanoun

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