cuneus
Sign in to saveThe cuneus (; : cunei) is a smaller lobe in the occipital lobe of the brain. The cuneus is bounded anteriorly by the parieto-occipital sulcus and inferiorly by the calcarine sulcus.
Key facts
- Brain.Name
- Cuneus
- Brain.Image
- Sobo 1909 624 - Cuneus.png
- Brain.Caption
- Medial surface of left cerebral hemisphere. (Cuneus visible at left in red.)
- Brain.Image2
- Cuneus.png
- Brain.Caption2
- Sagittal MRI slice with the cuneus and lingual gyrus shown in red.
- Brain.Artery
- posterior cerebral artery
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The cuneus (; : cunei) is a smaller lobe in the occipital lobe of the brain. The cuneus is bounded anteriorly by the parieto-occipital sulcus and inferiorly by the calcarine sulcus.
== Function == The cuneus (Brodmann area 17) receives visual information from the same-sided superior quadrantic retina (corresponding to contralateral inferior visual field). It is most known for its involvement in basic visual processing. Pyramidal cells in the visual cortex (or striate cortex) of the cuneus, project to extrastriate cortices (BA 18,19). The mid-level visual processing that occurs in the extrastriate projection fields of the cuneus are modulated by extraretinal effects, like attention, working memory, and reward expectation.