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Red: notochord; Magenta: axochord; Green: nerve chord; Blue: epidermis; Yellow: mesoderm. The notochord is an elastic, rod-like structure found in chordates. In chordate vertebrates the notochord is an embryonic structure that disintegrates, as the vertebrae develop, to become the nucleus pulposus in the intervertebral discs of the vertebral ...
The following is a glossary of common English language and scientific terms used in the description of gastropods Abapical – away from the apex of a shell ...
The lancelet notochord, unlike the vertebrate spine, extends into the head. This gives the subphylum, Cephalochordata, its name ( κεφαλή , kephalē means 'head'). The fine structure of the notochord and the cellular basis of its adult growth are best known for the Bahamas lancelet, Asymmetron lucayanum [ 51 ]
The notochord plays an integral role in the development of the neural tube. Prior to neurulation, during the migration of epiblastic endoderm cells towards the hypoblastic endoderm, the notochordal process opens into an arch termed the notochordal plate and attaches overlying neuroepithelium of the neural plate. The notochordal plate then ...
In addition, gene expression studies have failed to provide any evidence for homology between the notochord and the stomochord, or between the notochord and any hemichordate structure. The Brachyury (T) gene, which is expressed in the ascidian and other chordates notochord, is not expressed in the stomochord, and collagen is absent. [2]
9241 18121 Ensembl ENSG00000183691 ENSMUSG00000048616 UniProt Q13253 P97466 RefSeq (mRNA) NM_005450 NM_008711 RefSeq (protein) NP_005441 NP_032737 Location (UCSC) Chr 17: 56.59 – 56.6 Mb Chr 11: 89.19 – 89.19 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Noggin, also known as NOG, is a protein that is involved in the development of many body tissues, including nerve tissue ...
HNF-3 is needed for development of the notochord and node. [14] The gene Apolipoprotein B, which is involved in transporting and metabolizing fat soluble molecules in the blood, is expressed in the yolk sac and fetal liver. [6] Within the neurula in Xenopus laevis, development genes Xwnt-3 and Xwnt-4 are present. [15]
In the 10 somite embryo, Carnegie No. 5074, the prechordal plate is continuous posteriorly with the notochord, and is made up of about 35-40 cells. The prechordal mesenchyme proliferates laterally over the junction of the dorsal aorta and first aortic arch on each side. Gilbert P.W., (1957) STAGE 11