Definition of Notochord. Meaning of Notochord. Synonyms of Notochord

Here you will find one or more explanations in English for the word Notochord. Also in the bottom left of the page several parts of wikipedia pages related to the word Notochord and, of course, Notochord synonyms and on the right images related to the word Notochord.

Definition of Notochord

Notochord
Notochord No"to*chord, n. [Gr. ? the back + E. chord.] (Anat.) An elastic cartilagelike rod which is developed beneath the medullary groove in the vertebrate embryo, and constitutes the primitive axial skeleton around which the centra of the vertebr[ae] and the posterior part of the base of the skull are developed; the chorda dorsalis. See Illust. of Ectoderm.

Meaning of Notochord from wikipedia

- In anatomy, the notochord is a flexible rod formed of a material similar to cartilage. If a species has a notochord at any stage of its life cycle, it...
- This forms the notochord which induces the formation of the neural tube and establishes the anterior-posterior body axis. The notochord extends beneath...
- Chordata. During some period of their life cycle, chordates possess a notochord, a dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal...
- vertebral column is the defining characteristic of a vertebrate in which the notochord (a flexible rod of uniform composition) found in all chordates has been...
- neural tube. Evidence supporting the notochord as the signaling center comes from studies in which a second notochord is implanted near a neural tube in...
- in the subphylum Cephalochordata. It is a marine invertebrate with a notochord but no backbone and is used as a model organism to study the evolutionary...
- Homeobox protein notochord (NOTO) is a transcription factor encoded by the gene notochord homeobox (NOTO) located on the short arm of chromosome 2 (2p13...
- squirts, in that it possesses branchial openings, or "gill slits". It has notochord in the upper part of the body and has no nerve chord. It does have a stomochord...
- vertebrates. He did this because it seemed to have a very primitive, proto-notochord, however, the status of Pikaia as a chordate is not universally accepted;...
- early embryonic development the endoskeleton is composed of notochord and cartilage. The notochord in most vertebrates is replaced by the vertebral column...
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