A blastula (blastocyst in mammals), is a sphere of cells surrounding a fluid-filled cavity called the blastocoel. The blastocoel contains amino acids, proteins, growth factors, sugars, ions and other components which are necessary for cellular differentiation. The blastocoel also allows blastomeres to move during the process of gastrulation. [16]

Blastula, hollow sphere of cells, or blastomeres, produced during the development of an embryo by repeated cleavage of a fertilized egg. The cells of the blastula form an epithelial (covering) layer, called the blastoderm, enclosing a fluid-filled cavity, the blastocoel.

2024年11月23日 · The rapid, multiple rounds of cell division are termed cleavage. After the cleavage has produced over 100 cells, the embryo is called a blastula. The blastula is usually a spherical layer of cells (the blastoderm) surrounding a …

A blastula is formed after a zygote undergoes cell division, it is a hollow structure that consists of about 6-32 cells. The development of a blastula takes place during the development of an embryo which is done by repeated cleavage of a fertilized egg.

2024年2月25日 · Blastula is the stage in early animal embryonic development that produces the blastocyst, a differentiated inner cell mass and an outer trophectoderm. In mammals, the blastula forms the blastocyst, with the inner cell mass going on to form the embryo.

2023年3月31日 · What is a Blastula in Biology? The blastula is an early embryonic stage that occurs during the development of many animal species. It is characterized by a hollow, spherical structure, with a fluid-filled cavity called the blastocoel.

2017年6月15日 · The main difference between morula and blastula is that morula is a spherical mass of blastomeres, which are formed following the splitting of a zygote whereas blastula is an early developmental stage of the embryo, consisting of a spherical layer of cells filled with fluid.

2023年6月12日 · The blastula is made up of a hollow spherical layer of cells, referred to as the blastoderm which surrounds a yolk or fluid-filled space called the blastocele or blastocoel.

2022年11月30日 · The blastula (from Greek βλαστός (blastos), meaning "sprout") is a hollow sphere of cells, referred to as blastomeres, surrounding an inner fluid-filled cavity called the blastocoel formed during an early stage of embryonic development in animals.

The blastula is the first identifiable stage of early embryo development that is common to many animals, and consists generally of a hollow epithelial layer enclosing a fluid-filled cavity: the blastocoel.