Calcarine fissure

Dr Craig Hacking and A.Prof Frank Gaillard et al.

The calcarine fissure, or calcarine sulcus, is located on the medial surface of the occipital lobe and divides the visual cortex (a.k.a. calcarine cortex) into two. 

The fissure is variable in course (figure 1), but is generally oriented horizontally, anteriorly joining the parieto-occipital fissure, and posteriorly reaching a variable distance toward or even beyond (and onto the lateral surface) of the occipital pole

Below the fissure is the infracalcarine region, comprised of the fusiform gyrus and lingual gyrus, whilst above the fissure is the cuneus

Buried deep in the fissure is the calcarine artery, a branch of the posterior cerebral artery, which supplies the region. 

Anatomy: Brain
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Article information

rID: 10101
Section: Anatomy
Synonyms or Alternate Spellings:
  • Calcarine sulcus

Cases and figures

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    Figure 1: neuroanatomy: medial cortex (diagrams)
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