- Lapisan kecambah
- Archenteron
- Invagination
- Gastrulation
- Endoderm
- Anus
- Coelom
- Streak
- Protostome
- Enterocoely
- Starfish
- Archenteron - Wikipedia
- What is Archenteron? It’s Characteristics and Difference Between ...
- Archenteron | anatomy | Britannica
- Archenteron: Definition, Formation & Function - Study.com
- What is the Difference Between Archenteron and Blastocoel
- Archenteron - (General Biology I) - Vocab, Definition ... - Fiveable
- Strabismus-mediated primary archenteron invagination is …
- Archenteron: Understanding Embryonic Development and its Role
- Archenteron - an overview | ScienceDirect Topics
- Archenteron | definition of archenteron by Medical dictionary
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The archenteron, also called the gastrocoel, the primitive digestive tube or the primitive gut, is the internal cavity of the primitive gastrointestinal tract that forms during gastrulation in a developing animal embryo. It develops into the endoderm and mesoderm of the animal.
Formation in sea urchins
As primary mesenchyme cells detach from the vegetal pole in the gastrula and enter the fluid-filled cavity in the center (the blastocoel), the remaining cells at the vegetal pole flatten to form a vegetal plate. This buckles inwards towards the blastocoel in a process called invagination. The cells continue to be rearranged until the shallow dip formed by invagination transforms into a deeper, narrower pouch formed by the gastrula's endoderm. This pouch narrows and lengthens to become the archenteron, a process driven by convergent extension. The open end of the archenteron is called the blastopore.
The filopodia—thin fibers formed by the mesenchyme cells, found in late gastrulation—contract to drag the tip of the archenteron across the blastocoel. The endoderm of the archenteron will fuse with the ectoderm of the blastocoel wall. At this point gastrulation is complete, and the embryo has a functional digestive tube.
Similar formation process in other animals
The indentation that is actually formed is called the lip of the blastopore or the dorsal lip in amphibians and fish, and the primitive streak in birds and mammals. Each is controlled by the dorsal lip and primitive node (also known as Hensen's node), respectively.
During gastrulation, the archenteron develops into the digestive tube, with the blastopore developing into either the mouth (in protostomes) or the anus (in deuterostomes).
External links
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Archenteron - Wikipedia
15 Archenteron Synonyms. Similar words for Archenteron.
15 Archenteron Synonyms. Similar words for Archenteron.
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Archenteron: Definition, Formation & Function | Study.com
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Archenteron - Wikipedia
The archenteron, also called the gastrocoel, the primitive digestive tube or the primitive gut, is the internal cavity of the primitive gastrointestinal tract that forms during gastrulation in a …
What is Archenteron? It’s Characteristics and Difference Between ...
At the gastrula stage of development, the archenteron (gastrocoel) is a cavity within an animal embryo. It has an entrance (the blastopore) that connects it to the outside and forms the …
Archenteron | anatomy | Britannica
…the primitive gut cavity, or archenteron, which eventually gives rise to the hollow core (lumen) of the alimentary canal. At this stage the embryo has a primitive gut with an opening to the …
Archenteron: Definition, Formation & Function - Study.com
Archenteron refers to the digestive cavity during the early stages of human development. More specifically, the archenteron is the digestive cavity of an embryo during the gastrula stage,...
What is the Difference Between Archenteron and Blastocoel
Feb 15, 2019 · 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 …
Archenteron - (General Biology I) - Vocab, Definition ... - Fiveable
The archenteron is the primitive gut formed during the early stages of embryonic development in animals. It plays a crucial role in the development of the digestive system and is a defining …
Strabismus-mediated primary archenteron invagination is …
Our results demonstrate that Wnt/PCP-mediated initial archenteron invagination can be uncoupled from Wnt/ß-catenin-mediated endoderm cell fate specification in Nematostella, and …
Archenteron: Understanding Embryonic Development and its Role
The archenteron, also known as the gastrocoel, is a cavity formed within an animal embryo during the gastrula stage of development. It has an opening, the blastopore, which connects it to the …
Archenteron - an overview | ScienceDirect Topics
Once the endoderm and mesoderm are inside the ball, they usually obliterate the blastocoel and form a new cavity, the archenteron, or primitive gut. Animals can be divided in two on the basis …
Archenteron | definition of archenteron by Medical dictionary
archenteron that part of the developing embryo of animals (BLASTULA) formed by an invagination of MESODERM and ENDODERM cells into the blastocoel which ultimately forms the gut. The …