Archenteron
Archenteron (pronounced: /ɑːrˈkɛntərɒn/), is a term used in Embryology to describe the primitive gut that forms during the gastrulation stage of Embryonic Development.
Etymology
The term "Archenteron" is derived from the Greek words "arche-" meaning "beginning", and "-enteron" which refers to the intestine. This is reflective of the archenteron's role as the precursor to the gut in an embryo.
Definition
The archenteron is the endoderm-lined cavity, formed during the process of Gastrulation, that develops into the digestive tract of an animal. It is initially a narrow, tube-like structure extending along the anteroposterior axis of the embryo. The opening of the archenteron, known as the Blastopore, eventually becomes the anus in deuterostomes and the mouth in protostomes.
Related Terms
- Gastrulation: The process in which the blastula develops into a gastrula with the formation of three embryonic layers.
- Endoderm: The innermost layer of the cells or tissue of an embryo in early development.
- Blastopore: The opening of the central cavity of an embryo in the early stage of development.
- Anteroposterior Axis: The line running from the head to the tail of an organism, or from the front to the back of an organism.
See Also
External links
- Medical encyclopedia article on Archenteron
- Wikipedia's article - Archenteron
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