Fornix

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The fornix cerebri, or simply fornix, is a C-shaped projection tract of the brain that connects the Hippocampus with the Corpora mamillaria and is part of the limbic system.

Clinical relevance

Damage to the fornix leads to memory impairment[^1].

Figure

Fornix, Gray's Anatomy
Anatomical drawing of the fornix adapted from Gray's Anatomy, Figure 747.
Third ventricle, sagittal view
Sagittal section through the third ventricle. Figure adapted from Albert Rhoton 2002 in Neurosurgery.
Endoscopic view of the third ventricle
Endoscopic view into the third ventricle through a supracerebellar infratentorial approach, showing the interthalamic adhesion, fornix, and anterior commissure. Figure adapted from Rhomberg T and Henry WSS. Microsurgical Resection of a Pineal Cyst via a Paramedian Supracerebellar Infratentorial Approach. World Neurosurgery 185 (2024): 113. DOI 10.1016/j.wneu.2024.02.049

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