The collateral fissure is a large sulcus on the tentorial surface of the

cerebral hemisphere The vertebrate cerebrum (brain) is formed by two cerebral hemispheres that are separated by a groove, the longitudinal fissure. The brain can thus be described as being divided into left and right cerebral hemispheres. Each of these hemispheres ...

and extends from near the

occipital pole The vertebrate cerebrum (brain) is formed by two cerebral hemispheres that are separated by a groove, the longitudinal fissure. The brain can thus be described as being divided into left and right cerebral hemispheres. Each of these hemispheres ...

to within a short distance of the

temporal pole Brodmann area 38, also BA38 or temporopolar area 38 (H), is part of the temporal lobe, temporal cerebral cortex , cortex in the human brain. BA 38 is at the anterior end of the temporal lobe, known as the temporal pole. BA38 is a subdivision of ...

. It is also known as the medial occipitotemporal sulcus. Behind, it lies below and lateral to the

calcarine fissure The calcarine sulcus (or calcarine fissure) is an anatomical landmark located at the caudal end of the medial surface of the brain of humans and other primates. Its name comes from the Latin "calcar" meaning "spur". It is very deep, and known as ...

, from which it is separated by the

lingual gyrus The lingual gyrus, also known as the ''medial'' occipitotemporal gyrus, is a brain structure that is linked to processing vision, especially related to letters. It is thought to also play a role in analysis of logical conditions (i.e., logical or ...

; in front, it is situated between the

parahippocampal gyrus The parahippocampal gyrus (or hippocampal gyrus') is a grey matter cortical region, a gyrus of the brain that surrounds the hippocampus and is part of the limbic system. The region plays an important role in memory encoding and retrieval. It ha ...

and the anterior part of the

fusiform gyrus The fusiform gyrus, also known as the ''lateral occipitotemporal gyrus'','' ''is part of the temporal lobe and occipital lobe in Brodmann area 37. The fusiform gyrus is located between the lingual gyrus and parahippocampal gyrus above, and ...

Additional images

File:Gray738.png, Coronal section through posterior cornua of

lateral ventricle The lateral ventricles are the two largest ventricular system, ventricles of the brain and contain cerebrospinal fluid. Each cerebral hemisphere contains a lateral ventricle, known as the left or right lateral ventricle, respectively. Each later ...

. (Collateral fissure labeled at bottom center.) File:Hippocampal Limbic Connections Functions - Sanjoy Sanyal (Cropped from 5m28s to 6m30s) Collateral sulcus.webm, Human brain dissection video (62 sec). Demonstrating location of collateral sulcus.

References

Cerebrum Sulci (neuroanatomy) Articles containing video clips {{neuroanatomy-stub