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The notochord is a flexible, rod-shaped body found in embryos of all chordates. It is composed of cells derived from the mesoderm and defines the primitive axis of the embryo.
- Is a notochord flexible?
- Is notochord a rod like structure?
- What is the shape of notochord?
- What are the characteristics of notochord?
- Is notochord a backbone?
- What is a notochord simple definition?
Is a notochord flexible?
notochord, flexible rodlike structure of mesodermal cells that is the principal longitudinal structural element of chordates and of the early embryo of vertebrates, in both of which it plays an organizational role in nervous system development.
Is notochord a rod like structure?
Notochord is a mesodermally derived rod-like structure formed on the dorsal side during embryonic development in some animals (chordates.)
What is the shape of notochord?
Structure. The notochord is a long, rodlike structure that develops dorsal to the gut and ventral to the neural tube. The notochord is composed primarily of a core of glycoproteins, encased in a sheath of collagen fibers wound into two opposing helices. The glycoproteins are stored in vacuolated, turgid cells.
What are the characteristics of notochord?
Notochord. The chordates are named for the notochord: a flexible, rod-shaped structure that is found in the embryonic stage of all chordates and also in the adult stage of some chordate species. It is located between the digestive tube and the nerve cord, providing skeletal support through the length of the body.
Is notochord a backbone?
What is a Notochord? ... A notochord is a primitive beginning to the backbone. It appears in embryos as a small flexible rod made from cells from the mesoderm, which is one of the three layers of cells of embryos. Notochords are only found in the phylum chordata, a group of animals that includes humans.
What is a notochord simple definition?
Definition of notochord
: a longitudinal flexible rod of cells that in the lowest chordates (such as a lancelet or a lamprey) and in the embryos of the higher vertebrates forms the supporting axis of the body.
