Commissure of Fornix (Hippocampal Commissure) (Commissura fornicis)
Educational content only — not medical advice.
Anatomy
The commissure of the fornix (hippocampal commissure / psalterium) is a triangular transverse lamina of myelinated nerve fibers connecting the two crura of the fornix beneath the splenium of the corpus callosum, providing interhippocampal communication.
Clinical notes
Facilitates bilateral synchronization of hippocampal theta rhythms; surgical division does not produce significant memory deficits if bilateral fornix columns remain intact.
Related structures
Educational references
FAQ
What is the role of the Commissure of Fornix (Hippocampal Commissure)?
The commissure of the fornix (hippocampal commissure / psalterium) is a triangular transverse lamina of myelinated nerve fibers connecting the two crura of the fornix beneath the splenium of the corpus callosum, providing interhippocampal communication.
Why is the Commissure of Fornix (Hippocampal Commissure) clinically important?
Facilitates bilateral synchronization of hippocampal theta rhythms; surgical division does not produce significant memory deficits if bilateral fornix columns remain intact.
Source & license
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