Morula vs Blastula
莫拉和囊肿之间的差异与卵的不同发育阶段有关。主要发展阶段蛋after the fertilization arezygote,Morula,Blastula和embryo。Fertilization is an important biological process resulting in the first embryonic stage, the zygote. Formation of morula and blastula are considered as the early embryonic developmental stages of animals. After the formation of the zygote, it transforms to the next stage, called the blastula. This transformation process is governed by a unique embryological biological process calledcleavage。During the cleavage, series ofmitotic divisionstake place in zygote to produce daughter cells, which are genetically similar to their parent cell. These new daughter cells are now calledblastomeres。随着时间的流逝,莫拉拉将分化为囊肿,该囊肿具有较高的细胞数和不同的结构。在本文中,将概述Morula和Blastula之间的差异。
桑椹胚是什么?
Morula is aball-like mass of cells formed by the cleavage of the zygote。Morula usually consists of 16 – 32 cells. The first cleavage in human zygote occurs in the fallopian tube, about 30 hours after fertilization. Second and third cleavage take place about 60 hours and 72 hours after fertilization respectively. Cleavage increases the number of cells, but not result in growth. Thus, morula has the same size as the zygote. As a result of subsequent cleavage division, morula forms into a centrally located inner cell mass and a surrounding layer, the outer cell mass. During the embryonic development, the inner cell mass forms the tissues of the embryo while the outer cell mass gives rise thetrophoblast, which lately develops into theplacenta。Morula reaches theuteruswithin 4-6 days after fertilization.
What is Blastula?
Once the morula is formed, the trophoblast cells in the center of the morula start to secrete fluid into the center of the morula forming a fluid-filled space, called囊泡。Now the embryo resemblesa hollow ball-like structureknown as the blastula. Blastocoel is surrounded by single cell layer known as trophoblast ortrophectoderm。囊胚is present in allvertebrates在他们的胚胎nic development. However, in mammalian species, blastula consists of an inner cell mass on the inner surface on one side of the blastula, whereas no such inner cell mass is found in non-mammalian species. The face of blastocyst, where inner cell mass is attached is known asembryonic poleor动物杆, whereas the opposite side is calledabembryonic pole。During the development of blastula, zona pellucida starts to disintegrate, which enhances the growth of the embryo.
What is the difference between Morula and Blastula?
• During the embryonic development, zygote transforms to morula and then morula transforms to blastula.
• The cells inside the morula are larger than the cells that form blastula.
• The number of cells in blastula is larger than that in morula.
• Morula is a solid structure with no fluid-filled cavity inside. But blastula is a hollow structure, due to the presence of fluid-filled space called blastocoel.
• Trophoblast cells are present in blastula unlike in morula.
• Unlike in blastula, morula consists of an inner and outer cell masses.
• Duration of the formation of morula is lower than the formation of the blastula .
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