In 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. In …

The notochord is an embryonic midline structure common to all members of the phylum Chordata, providing both mechanical and signaling cues to the developing embryo. In vertebrates, the …

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 …

Mar 15, 2018 · The notochord is an elastic rod which extends through Chordate organisms, providing rigid support. In the more derived Chordates, the Vertebrates, the notochord is …

Jul 21, 2025 · The notochord is a flexible, rod-like scaffold that forms in the earliest stages of embryonic life. It serves as the primitive backbone, providing the primary axial support for the …

Oct 26, 2004 · What is the notochord? The notochord is the defining structure of the phylum Chordata, which includes all vertebrates. In its ‘mature’ state the notochord is a rod of large …

Notochord is a flexible, rod-shaped supporting structure that is one of the distinguishing features of the phylum Chordatas, being found at some point in the life cycle of all chordates …

Aug 3, 2025 · The notochord, also known as chorda dorsalis, represents the earliest fetal axial skeleton, extending from the Rathke pouch to the coccyx. It is a primitive cell line from which …

Notochord shows the chordate structure in the body and is an essential part of vertebrate development in the body. It presents as a midline signal, which figures around the tissues.

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. This is a transient embryonic anatomy …