Definition: A pregeniculum is a type of neuron that originates from an embryonic precursor cell. It is not a mature neuron, but rather a specialized cell that has developed into a specific function in the adult nervous system. In the context of genetics and neuroscience, pregeniculams are often used to describe cells or structures that are specifically involved in certain functions within the brain or spinal cord. They can be found in various parts of the brain and spinal cord, including the medulla oblongata and