Floor plate
The floor plate separates the left and right basal plates of the developing neural tube.
System	Nervous system
Precursor	Notochord

In the developing nervous system, the floor plate is a neural tube structure that separates the left and right components of the basal plate. Derived from the notochord during neurulation, it is a ventralizing structure, secreting and aiding in the development of the dorsal-ventral axis of the brainstem and spinal cord.

Floor plate cells secrete netrins.

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