Fimbria of the hippocampus

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Brain: Fimbria of the hippocampus
Coronal section of inferior horn of lateral ventricle. (Fimbria labeled at center left.)
Latin fimbria hippocampi
Gray's subject #189 840
NeuroNames hier-169
Dorlands/Elsevier f_07/12364986

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]


With regard to the brain, the fimbria is a prominent band of white matter along the medial edge of the hippocampus.


The fimbria is an accumulation of myelinated axons (mostly efferent) that first collect on the ventricular surface of the hippocampus as the alveus (a thin layer resembling an inverted trough).


Near the splenium the fimbria separates from the hippocampus as the crus of the fornix.

Additional images