Collateral sulcus
Last edit by Alaric Steinmetz on
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 known as the medial occipitotemporal sulcus, runs in an anteroposterior direction on the inferior surface of the temporal and occipital lobes. Anteriorly, the collateral sulcus can, in some cases, transition into the rhinal sulcus. Anteriorly, the collateral sulcus separates the lateral fusiform gyrus from the medially located parahippocampal gyrus. Posteriorly, the collateral sulcus separates the lateral fusiform gyrus from the medially located lingual gyrus.
Figure
