notochord
(Science: embryology) An axial mesodermal tissue found in embryonic stages of all chordates and protochordates, often regressing as maturity is approached. Typically a rod shaped mass of vacuolated cells. It lies immediately below the nerve cord and may provide mechanical strength to the embryo.
Dictionary > Notochord
You will also like...
Still Water Animals
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..
Human Perception – Neurology
This tutorial investigates perception as two people can interpret the same thing differently. Know more about human perc..
Movement of Molecules Across Cell Membranes
Molecules move within the cell or from one cell to another through different strategies. Transport may be in the form of..
Human Reproduction
Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..
Types and Causes of Brain Damage
This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..
Role of Golgi Apparatus & Endoplasmic Reticulum in Protein Synthesis
The endoplasmic reticulum and Golgi apparatus are the organelles involved in the translation step of protein synthesis a..