Parahippocampal gyrus

Synonyms
PHG

The parahippocampal gyrus is a gyrus of the brain that surrounds the hippocampus and is part of the limbic system.

Anatomy

The inferior surface of the Temporal lobe is formed by three gyri, with the parahippocampal gyrus representing the medial gyrus. The lateral border of the parahippocampal gyrus is defined by the collateral sulcus, and the medial border by the Cisterna ambiensUncus and caudally into the Gyrus lingualis

Function

The parahippocampal gyrus plays a role in higher cognitive functions, including the encoding and retrieval of memories as well as visuospatial processing[^2].

Figure

Parahippocampal gyrus
Schematic illustration of the parahippocampal gyrus in a midsagittal section of the brain. Figure adapted from Gray's Anatomy.
Parahippocampal gyrus
Schematic illustration of the parahippocampal gyrus (highlighted in blue). Figure adapted from Sobotta's Atlas of Anatomy.

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