Parietal lobe

The parietal lobe is one of the four lobes of the brain (along with the frontal lobetemporal lobe, and occipital lobe), located between the frontal and occipital lobes and underlying the parietal bone. It occupies about 25% of the cerebral hemispheres volume.

Gross anatomy

The parietal lobe accounts for only 19% of the total neocortical volume, only marginally larger than the occipital lobe 3. The lobe extends from the central sulcus anteriorly, which separates it from the frontal lobe, to the parieto-occipital fissure posteriorly, which separates it from the occipital lobe. The lateral sulcus corresponds to its inferolateral boundary, separating it from the temporal lobe. Medially, it is confined by the medial longitudinal fissure which divides both cerebral hemispheres.

Sulci and gyri
Relations
  • anterior: frontal lobe
  • posterior: occipital lobe
  • superior: parietal bone
  • inferior: temporal lobe

Blood supply


Neuroanatomy
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Article Information

rID: 34876
Section: Anatomy
Synonyms or Alternate Spellings:
  • Parietal lobes

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Cases and Figures

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    Figure 1: parietal lobe boundaries
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    Figure 2: parietal lobe sulci
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    Figure 3: pareital lobe gyri
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