What is the difference between blastocyst and blastula

At this stage of development, the inner cell mass consists of embryonic stem cells that will differentiate into the different cell types needed by the organism. The trophoblast will contribute to the placenta and nourish the embryo. The typical blastula is a ball of cells.

The next stage in embryonic development is the formation of the body plan. The cells in the blastula rearrange themselves spatially to form three layers of cells in a process known as gastrulation. During gastrulation, the blastula folds upon itself to form the three layers of cells. Each of these layers is called a germ layer, which differentiate into different organ systems.

Differentiation of germ layers : The three germ layers give rise to different cell types in the animal body: the ectoderm forms the nervous system and the outer layer of skin, the mesoderm gives rise to muscles and connective tissues, and the endoderm gives rise to the lining of the digestive system and other internal organs.

The three germs layers are the endoderm, the ectoderm, and the mesoderm. Amature vs. Lieing vs. Preferred vs. Omage vs. Finally vs.

Attendance vs. Latest Comparisons Tubercule vs. Glyptal vs. Faucet vs. Com vs. Destroyable vs. Aboriginal vs. Coelomate vs. Ocean vs. Judge vs. Flag vs. Forbear vs. A blastula, in general, is a spherical mass of cells surrounding a fluid formed after 5—8 days of fertilization.

In mammals, the blastula is specifically called a blastocyst. It is characteristically lined by a layer of trophoblast cells and a bunch of pluripotent cells called the Inner Cell Mass I. M or embryoblast at one end of the blastocyst. The I. M develops to form the fetus while the trophoblast develops to form the placenta. Please choose valid name.

Please Enter the valid Email. Select Grade 6th 7th 8th 9th 10th 11th 12th 12th Pass Please choose the valid grade. At this stage of development, illustrated in Figure 2 the inner cell mass consists of embryonic stem cells that will differentiate into the different cell types needed by the organism. The trophoblast will contribute to the placenta and nourish the embryo. Improve this page Learn More. Skip to main content. Module The Reproductive System.

Search for:. Visit the Virtual Human Embryo project at the Endowment for Human Development site to step through an interactive that shows the stages of embryo development, including micrographs and rotating 3-D images.