原口
- 関
- archenteron、gastrula、primitive gut
WordNet
- the opening into the archenteron
- double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm
- central cavity of the gastrula; becomes the intestinal or digestive cavity
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2014/07/31 22:15:25」(JST)
[Wiki en表示]
A blastopore is an opening into the archenteron during the embryonic stages of an organism. The distinction between protostomes and deuterostomes is based on the direction in which the mouth (stoma) develops in relation to the blastopore. Protostome derives from the Greek word protostoma meaning "first mouth"(πρώτος + στόμα) whereas Deuterostome's etymology is "second mouth" from the words second and mouth (δεύτερος + στόμα).
The major distinctions between deuterostomes and protostomes are found in embryonic development:
- Mouth/anus
- In protostome development, the first opening in development, the blastopore, becomes the animal's mouth.
- In deuterostome development, the blastopore becomes the animal's anus.
- Cleavage
- Protostomes have what is known as spiral cleavage which is determinate, this meaning that the fate of the cells is determined as they are formed.
- Deuterostomes have what is known as radial cleavage that is indeterminate.
See also
External links
- Blastopore at eMedicine Dictionary
Developmental biology > Human embryogenesis (development of embryo) and development of fetus (TE E2.0)
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First three
weeks |
Week 1 |
- Fertilization
- Oocyte activation
- Zygote
- Cleavage
- Morula
- Blastula
- Blastocyst
- Inner cell mass
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Week 2
(Bilaminar) |
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Week 3
(Trilaminar) |
Germ layers |
- Archenteron/Primitive streak
- Primitive pit
- Primitive knot/Blastopore
- Primitive groove
- Gastrula/Gastrulation
- Regional specification
- Embryonic disc
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Ectoderm |
- Surface ectoderm
- Neuroectoderm
- Somatopleuric mesenchyme
- Neurulation
- Neural crest
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Endoderm |
- Splanchnopleuric mesenchyme
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Mesoderm |
- Chorda-
- Paraxial (Somite/Somitomere)
- Intermediate
- Lateral plate
- Intraembryonic coelom
- Splanchnopleuric mesenchyme/Somatopleuric mesenchyme
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English Journal
- Embryonic development in Zungaro jahu.
- Marques C1, Faustino F2, Bertolucci B1, Paes MD3, Silva RC3, Nakaghi LS4.
- Zygote (Cambridge, England).Zygote.2016 Nov 22:1-15. [Epub ahead of print]
- The aim of this study was to characterize the embryonic development of Zungaro jahu, a fresh water teleostei commonly known as 'jaú'. Samples were collected at pre-determined times from oocyte release to larval hatching and analysed under light microscopy, transmission electron microscopy and scann
- PMID 27873560
- The immunomodulation of a maternal translationally controlled tumor protein (TCTP) in Zhikong scallop Chlamys farreri.
- Jia Z1, Wang M2, Yue F1, Wang X1, Wang L3, Song L4.
- Fish & shellfish immunology.Fish Shellfish Immunol.2016 Nov 18. pii: S1050-4648(16)30745-8. doi: 10.1016/j.fsi.2016.11.043. [Epub ahead of print]
- Translationally controlled tumor protein (TCTP) is initially described as a highly conserved protein implicated in cell growth, and it is subsequently confirmed to play important roles in mediating the innate immune response, especially the inflammatory. In the present study, the full-length cDNA se
- PMID 27871901
- Morphological diversity of blastula formation and gastrulation in temnopleurid sea urchins.
- Kitazawa C1, Fujii T2, Egusa Y3, Komatsu M4, Yamanaka A5.
- Biology open.Biol Open.2016 Nov 15;5(11):1555-1566. doi: 10.1242/bio.019018.
- Embryos of temnopleurid sea urchins exhibit species-specific morphologies. While Temnopleurus toreumaticus has a wrinkled blastula and then invaginates continuously at gastrulation, others have a smooth blastula and their invagination is stepwise. We studied blastula and gastrula formation in four t
- PMID 27591193
Japanese Journal
- J028025 レーザ切断法を用いたアフリカツメガエル原腸胚表層の応力分布の推定
- 年次大会 : Mechanical Engineering Congress, Japan 2012, "J028025-1"-"J028025-5", 2012-09-09
- NAID 110009994432
- Functional Involvement of Xenopus homologue of ADF/Cofilin Phosphatase, Slingshot(XSSH), in the Gastrulation Movement(Cell Biology)
Related Links
- blastoporeとは。意味や和訳。[名]発生原口. - goo辞書は国語、英和、和英、中国語、百科事典等からまとめて探せる辞書検索サービスです。 ... 辞書すべて 国語 類語 英和 和英 中日 日中 ※「説明文に含む」「見出し語に含む」検索は ...
- 世界大百科事典 第2版 blastoporeの用語解説 - 両生類の卵は受精すると分裂を重ねやがて中腔の胞胚となる。さらに発生が進むと胞胚の植物極側の1ヵ所で,表層の組織が内側に陥入をはじめ口唇状の原口blastoporeができる。原口の上唇 ...
Related Pictures
★リンクテーブル★
[★]
原腸胚、嚢胚
- 関
- archenteron、blastopore、gastrulae、primitive gut
[★]
原腸
- 関
- blastopore、gastrula、primitive gut
[★]
- 英
- blastopore
- 関
- 原腸、原腸胚
[★]
原口側唇
- 関
- lateral lip
[★]
原口腹唇
- 関
- ventral lip
[★]
原口背唇
- 関
- dorsal lip