developmental anatomy, the notochord is an elastic, rod-like anatomical structure found in animals of the phylum Chordata. A notochord is one of five synapomorphies...

that distinguish them from other taxa. These five synapomorphies are a notochord, a hollow dorsal nerve cord, an endostyle or thyroid, pharyngeal slits...

day 15 after fertilisation, the notochord grows from the primitive knot, in which it invaginates and forms the notochord canal within. Progressively, on...

floor plate and diverse ventral cell types within the neural tube. The notochord—a structure derived from the axial mesoderm—produces SHH, which travels...

embryonically and evolutionarily from the notochord. Hagfish are the only extant vertebrate whose notochord persists and is not integrated/ replaced by...

This forms the notochord, which induces the formation of the neural tube, and establishes the anterior-posterior body axis. The notochord extends beneath...

and eponymous characteristic of the vertebrate endoskeleton, where the notochord (an elastic collagen-wrapped glycoprotein rod) found in all chordates...

column (commonly known as a spine or backbone), which evolved from the notochord. It is a paraphyletic grouping including all animals excluding the chordate...

activities and keeping the two vertebrae separated. It is the remnant of the notochord. There is one disc between each pair of vertebrae, except for the first...

slow-growing neoplasm thought to arise from cellular remnants of the notochord. The evidence for this is the location of the tumors (along the neuraxis)...