Term Name:	collateral sulcus
Synonyms:	COS, fissura collateralis, sulcus collateralis
Definition:	The collateral fissure (or sulcus) is on the tentorial surface of the hemisphere and extends from near the occipital pole to within a short distance of the temporal pole. Behind, it lies below and lateral to the calcarine fissure, from which it is separated by the lingual gyrus; in front, it is situated between the hippocampal gyrus and the anterior part of the fusiform gyrus. [WP,unvetted].
Ontology:	Uberon Ontology [UBERON:0002716]