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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 column.
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 ...
6469 20423 Ensembl ENSG00000164690 ENSMUSG00000002633 UniProt Q15465 Q62226 RefSeq (mRNA) NM_000193 NM_001310462 NM_009170 RefSeq (protein) NP_000184 NP_001297391 NP_033196 Location (UCSC) Chr 7: 155.8 – 155.81 Mb Chr 5: 28.66 – 28.67 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Sonic hedgehog protein (SHH) is encoded for by the SHH gene. The protein is named after the video ...
The dorsal nerve cord is an anatomical feature found in chordate animals, mainly in the subphyla Vertebrata and Cephalochordata, as well as in some hemichordates.It is one of the five embryonic features unique to all chordates, the other four being a notochord, a post-anal tail, an endostyle, and pharyngeal slits.
The notochord extends from the base of the head to the tail; with it extend thick bands of paraxial mesoderm. [1] As the primitive streak continues to regress, somites form from the paraxial mesoderm by "budding off" rostrally as somitomeres, or whorls of paraxial mesoderm cells, compact and separate into discrete bodies. The periodic nature of ...
Axial mesoderm, or chordamesoderm, is the mesoderm in the embryo that lies along the central axis under the neural tube.. will give rise to notochord; starts as the notochordal process, whose formation finishes at day 20 in humans.
This forms the notochord, which induces the formation of the neural tube, and establishes the anterior-posterior body axis. The notochord extends beneath the neural tube from the head to the tail. The mesoderm moves to the midline until it covers the notochord. When the mesoderm cells proliferate, they form the paraxial mesoderm.
The notochord extends from the base of the head to the tail; with it extend thick bands of paraxial mesoderm. [ 3 ] As the primitive streak continues to regress, somites form from the paraxial mesoderm by "budding off" rostrally.