“Archenteron.” The Columbia Encyclopedia, 6th Ed,, 2019, Available HereĢ. Therefore, the main difference between archenteron and blastocoel is their formation and fate. It reduces its size and eventually fills up with mesoderm. However, blastocoel is the cavity formed during blastulation. ConclusionĪrchenteron is a cavity formed during gastrulation, developing into the lumen of the digestive cavity. Hence, this is another difference between archenteron and blastocoel. Give Rise toĪlso, archenteron gives rise to the lumen of the digestive tract while blastocoel diminishes in size and eventually fills up with the mesoderm. Importanceįurthermore, blastocoel is important for the formation of archenteron while blastocoel is the first cavity formed during the embryonic development. Segmentation CavityĪnother difference between archenteron and blastocoel is that the archenteron is not a segmentation cavity since it is made up of both endoderm and mesoderm while blastocoel is a segmentation cavity since it separates future endoderm from the inductive influence of the vegetal cells. Moreover, archenteron is formed during gastrulation while blastocoel is formed during blastulation. Thus, this is the main difference between archenteron and blastocoel. They perform a unique function in embryogenesis.ĭifference Between Archenteron and Blastocoel DefinitionĪrchenteron refers to the rudimentary alimentary cavity of an embryo at the gastrula stage while blastocoel refers to the cavity of a blastula, arising in the course of cleavage.Archenteron and blastocoel are two types of cavities that occur during the embryonic development in animals.Similarities Between Archenteron and Blastocoel In addition, since blastocoel separates future ectoderm from the inductive effect of the vegetal pole, it is known as a segmentation cavity. Therefore, it is also known as cleavage cavity. Blastocoel is a result of cleavage of the fertilized egg at the 16-32-cell stage. Since it occurs inside the blastula, blastocoel is known as the blastocyst cavity. It is a fluid-filled cavity during the early stages of development. What is Blastocoelīlastocoel is the cavity formed during blastulation. During the further developmental stages of the embryo, the blastopore develops into the mouth in protostomes while it develops into the anus in deuterostomes. Finally, gastrulation ends up with the fusion of the endoderm of the archenteron with the ectoderm. Then, the thin fibers called filopodia, which are formed by the primary mesenchyme cells, contract while dragging the tip of the archenteron across the blastocoel. Blastopore is the open end of the archenteron. The remaining cells of the vegetal pole form the vegetal plate, which buckles inwards towards the blastocoel in a process known as invagination. The shallow dip formed by the invagination transforms into a deeper, narrow pouch formed by the endoderm. It is formed from both endoderm and mesoderm (endo-mesodermal origin).ĭuring gastrulation, some primary mesenchyme cells of the vegetal pole (the pole of the fertilized egg containing the highest amount of yolk) enter into the cavity of the blastocoel. Since it is a type of cavity formed during gastrulation, the archenteron is also known as gastrocoel. – Comparison of Key Differences Key TermsĪrchenteron, Blastocoel, Blastulation, Digestive Tract, Gastrulation, Inner Cell Mass, TrophoblastĪrchenteron or the digestive tube is the primitive gut developed during gastrulation in the developing embryo. What is the Difference Between Archenteron and Blastocoel What are the Similarities Between Archenteron and BlastocoelĤ. Furthermore, archenteron eventually gives rise to the lumen of the digestive tract while blastocoel diminishes in size and eventually fills up with the mesoderm.īlastocoel, archenteron, and coelom are the three types of cavities that occur sequentially during embryonic development.
The main difference between archenteron and blastocoel is that the archenteron is the primitive gut that forms during gastrulation whereas blastocoel is the cavity within the blastula that forms during blastulation.
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