Precuneus

Definition 1

The medial aspect of the posterior parietal lobe, which is bounded anteriorly by the marginal branch of the cingulate sulcus, posteriorly by the medial portion of the parieto-occipital fissure and inferiorly by the subparietal sulcus. It is involved in a wide range of higher-order cognitive function, such as episodic memory, visuospatial processing, reflections upon self, and aspects of consciousness. (NCI Thesaurus)

Definition 2

An anatomical term referring to the medial aspect of the posterior parietal lobe. The precuneus is limited anteriorly by the marginal branch of the cingulate sulcus, posteriorly by the medial portion of the parieto-occipital fissure and inferiorly by the subparietal sulcus (Cavanna AE and Trimble MR. Brain (2006), 129, 564-583). (NCI Thesaurus/CDISC)

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