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Related to notochordal: notochordal canal, notochordal process


A flexible rodlike structure that is present in the embryos of all chordates and in the adult forms of certain groups, such as the lancelets and hagfishes. The notochord develops into the spinal column in most vertebrates.

[Greek nōton, back + chord.]

no′to·chord′al adj.
References in periodicals archive ?
65) It is noteworthy that the cells of intraosseous benign notochordal cell tumor have the same immunophenotype as chordoma, but the former typically lacks a lobular architecture, fibrous bands, and myxoid matrix.
Thornwaldt's bursa or nasopharyngeal bursa is a recess in the midline of posterosuperior wall of nasopharynx, formed from notochordal remnant.
Chordomas are rare, slow-growing malignant yet locally aggressive osteolytic primary bone tumours derived from persistent notochordal remnants that principally arise in the axial skeleton.
The origin of chondrocytes in the nucleus pulposus and histologic findings associated with the transition of a notochordal nucleus pulposus to a fibrocartilaginous nucleus pulposus in intact rabbit intervertebral discs.
Persistence of canal on basilar part of clivus is a rare congenital defect of skull base representing an embryological remnant depicting the cephalic end of the notochord and corresponds to the course of the notochordal canal in the basiocciput caudally.
At present at least 3 different NP cell types "chondrocytelike" cells (NP), notochordal cells (NCs) and NP stem/ progenitor cells (NPPCs), have been identified within the NP.
9), and lack any sign of notochordal pit, both features being diagnostic of Neobatrachia (GOMEZ et al.
Chordomas are rare, slow-growing tumours that originate from ectopic notochordal remnants, found along the axial skeleton.
Benign notochordal cell tumors: A comparative histological study of benign notochordal cell tumors, classic chordomas, and notochordal vestiges of fetal intervetebral discs.
10] Extensive work in animal models of gastrointestinal duplication has shown a very close relationship of this duplication with the presence of notochordal and spinal abnormalities, such as spina bifida and split notochord syndrome.
1) The severity of the disorder correlates with the degree of notochordal cell depletion.
It is apparent that the origins of the most caudal elements in the Oikopleura tail are complex, and there are indications that at least two cell types, muscle and the t-cell, may derive from notochordal mesoderm.