Question

mention the function and location of notochord

Answer 1

The notochord (axial mesoderm, notochordal process) is the defining structure forming in all chordate embryos (taxonomic rank: phylum Chordata). It is an early forming midline structure in the trilaminar embryo mesoderm layer initially ventral to the ectoderm, then neural plate and finally neural tube.The notochord is the defining structure of the chordates, and has essential roles in vertebrate development. It serves as a source of midline signals that pattern surrounding tissues and as a major skeletal element of the developing embryo

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Answer 2

Answer:

i. Notochord is supporting rod like structure present on dorsal side of the animals.

ii. It keeps the nervous tissue separated from rest of he tissue.

iii. The notochord is present in proboscis of phylum Hemichordates.

iv. In Urochordates, the notochord is present in tail region for the free swimming larvae.

v. In cephalochordates, the notochord lies throughout the length of the body.

vi. In vertebrates, notochordate is replaced by the vertebral column.