Collateral sulcus

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Synonyms
Fissura collateralis, collateral fissure

The collateral sulcus is a Sulcus at the base of the Temporal lobe and the Occipital lobe of the brain.

Anatomy

The collateral sulcus, also referred to as the medial occipitotemporal sulcus, runs in an anteroposterior direction on the inferior surface of the temporal lobe and occipital lobe. Anteriorly, the collateral sulcus may merge into the rhinal sulcus in some cases. Anteriorly, the collateral sulcus separates the lateral Gyrus fusiformisGyrus parahippocampalisGyrus lingualis

Figure

Collateral sulcus
Schematic illustration of the collateral sulcus (highlighted in red). Figure adapted from Gray's Anatomy.

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