lamina terminalis

• It has no special functional importance, but it is an important landmark.

• It is the thin sheet of neural tissue which marks the rostral boundary of the original neural tube from which the brain and spinal cord developed. Therefore, it is the site where the 'anterior neuropore' of that original tube closed.

• Associated with part of it is one of the circumventricular organs - the 'organum vasculosum of the laminal terminalis', often abbreviated OVLT.

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