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Fimbia of the hippocampus

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Brain: Fimbria of hippocampus
Coronal section of inferior horn of lateral ventricle. (Fimbria labeled at center left.)
[[Image:|250px|center|]]
Latin fimbria hippocampi
Gray's subject #189 840
Part of
Components
Artery
Vein
BrainInfo/UW hier-169
MeSH [1]

With regard to the brain, the fimbria is a prominent band of white matter along the medial edge of the hippocampus. It is a complex fibre bundle that runs from the lateral surface of the Hippocampal formation to other regions of the forebrain

Structure

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).

Relations

Near the splenium the fimbria separates from the hippocampus as the crus of the fornix. So that section which runs rostrally from the hippocampus forms the fornix. This is divided in turn into:

Additional images

Template:Hippocampal formation



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