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In neuroanatomy, a sulcus (Latin: "furrow"; pl.: sulci) is a shallow depression or groove in the cerebral cortex.One or more sulci surround a gyrus (pl. gyri), a ridge on the surface of the cortex, creating the characteristic folded appearance of the brain in humans and most other mammals.
It is bounded approximately by the intraparietal sulcus, the inferior postcentral sulcus, the posterior subcentral sulcus and the lateral sulcus. It is bounded caudally by the angular area 39 (H), rostrally and dorsally by the caudal postcentral area 2, and ventrally by the subcentral area 43 and the superior temporal area 22 (Brodmann-1909).
In the human brain, the superior temporal sulcus (STS) is the sulcus separating the superior temporal gyrus from the middle temporal gyrus in the temporal lobe of the brain.A sulcus (plural sulci) is a deep groove that curves into the largest part of the brain, the cerebrum, and a gyrus (plural gyri) is a ridge that curves outward of the cerebrum.
Burdach's fissure: connects the brain's insula and the inner surface of the operculum. Calcarine sulcus or Calcerine fissure: extends from the occipital of the cerebrum to the occipital fissure. Callosomarginal fissure: found in the medial surface of the cerebrum. Central sulcus or Rolando's fissure: separates the brain's frontal and parietal ...
Download as PDF; Printable version; ... Anatomical terms of neuroanatomy [edit on Wikidata] The paracentral sulcus is a sulcus of the brain.
The lateral sulcus (or lateral fissure, also called Sylvian fissure, after Franciscus Sylvius) is the most prominent sulcus of each cerebral hemisphere in the human brain. The lateral sulcus is a deep fissure in each hemisphere that separates the frontal and parietal lobes from the temporal lobe. The insular cortex lies deep within the lateral ...
There is a region of the central sulcus, called the “hand knob”, which is a notch in the area of the hand motor region. The position of this “knob” can be indicative as well of someone's handedness. [11] As motor functions develop, it is expected that the shape of the central sulcus will change.
In neuroanatomy, the marginal sulcus (margin of the cingulate sulcus) is a sulcus (crevice) that may be considered the termination of the cingulate sulcus. It separates the paracentral lobule anteriorly and the precuneus posteriorly.