Heavily myelinated fiber bundle of the TELENCEPHALON projecting from the hippocampal formation to the HYPOTHALAMUS. Some authorities consider the fornix part of the LIMBIC SYSTEM. The fimbria starts as a flattened band of axons arising from the subiculum and HIPPOCAMPUS, which then thickens to form the fornix.

Synonyms: Commissure of Fornix, Commissures, Fornical, Commissures, Dorsal Hippocampal, Commissure, Dorsal Hippocampal, Fornices (Brain), Fornical Commissures, Hippocampi, Commissura, Fimbria-Fornix, Hippocampal Commissure, Dorsal, Brain Fornix, Hippocampus, Commissura, Commissure, Fornical, Commissura Hippocampi, Fornix-Fimbrias, Brain Fimbria, Hippocampus Fimbrias, Fornix Commissures, Dorsal Hippocampal Commissure, Fornix (Brain), Fimbria Fornix, Fimbria of Hippocampus, Hippocampus Fimbria, Brain Fornices, Fimbrias (Brain), Commissures, Hippocampal, Hippocampal Commissures, Commissure, Hippocampal, Commissura Hippocampus, Fornices, Brain, Fimbria-Fornices, Fornix Commissure, Fornix, Brain, Brain Fimbrias, Fimbrias, Brain, Fornix-Fimbria, Fimbria (Brain), Hippocampal Commissures, Dorsal, Fornix Fimbria, Hippocampal Commissure, Fimbria, Brain, Dorsal Hippocampal Commissures, Fornical Commissure