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Occipital lobe of brain
Last reviewed: 23.04.2024
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The occipital lobe (lobus occipitalis) is located behind the parieto-occipital furrow and its conditional continuation on the upperlateral surface of the hemisphere. In comparison with other shares, it has small dimensions. The occipital lobe ends with the occipital pole (polus occipitalis). Furrows and convolutions on the upperlateral surface of the occipital lobe are very variable. The transverse occipital furrow (sulcus occipitalis transversus) is most often and better than the others, which is, as it were, an extension to the posterior part of the intra-temporal groove of the parietal lobe.
The occipital lobe on the outer surface does not have clear boundaries separating it from the parietal and temporal lobes. On the inner surface of the hemisphere, from the parietal lobe, it is delimited by the parietal-occipital furrow. The gyrations and furrows of the external surface of the occipital lobes are variable and variable. The inner surface of this share is divided by a wide furrow into a wedge (cuneus) and a lingual gyrus (gyrus lingualis).
The occipital lobe is associated with visual functions. On the inner surface of the occipital lobe, in the zone of the furrow groove (sulcus calcarinus) and along its edges in the wedge and lingual groove, the visual conductors coming from the periphery terminate. These regions constitute the projection zone of the visual analyzer. In the remaining parts of the occipital lobes, more complex and subtle analysis and synthesis of visual perception are carried out in its external departments.
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