In
neuroanatomy
Neuroanatomy is the study of the structure and organization of the nervous system. In contrast to animals with radial symmetry, whose nervous system consists of a distributed network of cells, animals with bilateral symmetry have segregated, defin ...
, the subparietal sulcus () or suprasplenial sulcus is a
sulcus, or crevice, on the medial surface of each
cerebral hemisphere
The vertebrate cerebrum (brain) is formed by two cerebral hemispheres that are separated by a groove, the longitudinal fissure. The brain can thus be described as being divided into left and right cerebral hemispheres. Each of these hemispheres ...
, above the
splenium of the
corpus callosum
The corpus callosum (Latin for "tough body"), also callosal commissure, is a wide, thick nerve tract, consisting of a flat bundle of commissural fibers, beneath the cerebral cortex in the brain. The corpus callosum is only found in placental ...
. It separates the
precuneus from the posterior part of the
cingulate gyrus
The cingulate cortex is a part of the brain situated in the medial aspect of the cerebral cortex. The cingulate cortex includes the entire cingulate gyrus, which lies immediately above the corpus callosum, and the continuation of this in the c ...
. It is the posterior continuation of the
cingulate sulcus. The cingulate sulcus actually "terminates" as the
marginal sulcus of the cingulate sulcus (margin of cingulate gyrus). It extends posteriorly toward the
calcarine sulcus.
The precuneus is bordered anteriorly by the marginal branch of the cingulate sulcus (margin of cingulate sulcus), posteriorly by the
parieto-occipital sulcus, and inferiorly by the subparietal sulcus.
Additional images
References
* Michio Ono, Stefan Kubik, Chad D. Abernathey. ''Atlas of the Cerebral Sulci''. 1990
* Henry Gray. Anatomy of the Human Body. 1918.
External links
* http://braininfo.rprc.washington.edu/centraldirectory.aspx?ID=102
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Sulci (neuroanatomy)
Medial surface of cerebral hemisphere