Collateral fissure
| Collateral fissure | |
|---|---|
Medial surface of left cerebral hemisphere. (Collateral fissure labeled at bottom left.) | |
Medial surface of right cerebral hemisphere. Collateral sulcus divides limbic (purple) and temporal lobe (green). | |
| Details | |
| Identifiers | |
| Latin | sulcus collateralis, fissura collateralis |
| NeuroNames | 47 |
| TA98 | A14.1.09.206 |
| TA2 | 5442 |
| FMA | 83751 |
| Anatomical terms of neuroanatomy | |
The collateral fissure is a large sulcus on the tentorial surface of the cerebral hemisphere and extends from near the occipital pole to within a short distance of the temporal pole. It is also known as the medial occipitotemporal sulcus.
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 parahippocampal gyrus and the anterior part of the fusiform gyrus.