The cingulate sulcus runs on the medial surface of each hemisphere, parallel to the corpus callosum, separating the cingulate gyrus below from the medial frontal gyrus and paracentral lobule above. Near its back end it turns upwards as the marginal ramus, which marks the back of the paracentral lobule. The callosomarginal artery often runs along it.
| Location | Medial surface of the hemisphere, above and parallel to the corpus callosum |
|---|---|
| Parts |
|
| Connections |
|
| Blood Supply | Anterior cerebral artery (callosomarginal branch) |
Forms the upper boundary of the cingulate gyrus and limbic lobe on the medial surface.
The marginal ramus is a reliable MRI landmark for finding the central sulcus on the medial surface. The cingulate sulcus helps surgeons locate the cingulate cortex during procedures such as cingulotomy. Its pattern varies between people and is sometimes doubled.
Infarction along the medial surface, including the cortex bordering the cingulate sulcus, causing leg weakness and apathy.
Tumour of the cingulate region that may present with seizures or behavioural change.
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