Corpus: Calcarine sulcus

The sulcus calcarinus is a cerebral furrow (sulcus cerebri) of the median occipital lobe.

Macroscopy[Bearbeiten]

Macroscopically, the sulcus calcarinus can be visualised in the median sagittal section of the brain. It runs as an anatomical boundary structure between the lingual gyrus and the cuneus, which it borders together with the parietooccipital sulcus. The ramus calcarinus of the medial occipital artery runs through it.

Functional anatomy[Bearbeiten]

The cortex areas flanking the sulcus calcarinus belong to the primary visual cortex (V1), Brodmann area 17, with the macroscopically and histologically prominent Gennari stripe (Vicq-d'Azyr stripe). In addition, it subdivides area 17 retinotopically, with the upper areas of the retina (and thus the lower visual field) being projected onto regions above and the lower areas onto regions below the sulcus calcarinus.

See also: Visual pathway