2023年9月19日 · Sulci are grooves that surround each gyrus, with deeper grooves termed fissures. They increase the cerebral cortex’s surface area and create boundaries between brain lobes. Primary sulci form independently before birth, while secondary sulci develop afterward due to other factors. Sulci can be complete (very deep) or incomplete (shallow).

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. The larger sulci are also called fissures.

2018年1月7日 · Gyri (singular gyrus) refer to the ridges between two clefts on the cerebral surface of the brain. The clefts that surround a gyrus are called sulci. The surface area of the brain is increased by the presence of gyri. The increased surface area gives a better cognition inside a limited size by the skull.

2024年9月30日 · Brain sulci, labeled meticulously by anatomists, are the grooves or furrows that crisscross the surface of the brain. They’re not just random dents or creases; each sulcus has a specific name, location, and function, working in harmony with its neighboring structures to orchestrate the symphony of human cognition.

2019年10月9日 · Gyri (singular: gyrus) are the folds or bumps in the brain and sulci (singular: sulcus) are the indentations or grooves. Folding of the cerebral cortex creates gyri and sulci which separate brain regions and increase the brain's surface area and cognitive ability.

From the frontal pole to the occipital pole, the following sulci are indicated: the superior frontal sulcus (dark green), the inferior frontal sulcus (red), the anterior, horizontal ramus of the lateral, Sylvian sulcus (light green), the ascending, vertical ramus of the lateral sulcus (cyan), the diagonal sulcus (yellow), the precentral sulcus ...

One of the grooves or furrows on the surface of the brain, bounding the several convolutions or gyri; a fissure. 2. Any long, narrow groove, furrow, or slight depression. 3. A groove or depression in the oral cavity or on the surface of a tooth. 4.

2024年9月30日 · Brain sulci, derived from the Latin word “sulcus” meaning furrow or groove, are the deep folds that characterize the surface of the cerebral cortex. They’re like the Grand Canyons of your cranium, carving out distinct regions and increasing the surface area of the brain.

We describe sulci as a collection of 2D contours generated from successive data slices. The contours are parameter curves of the sulci. The algorithm includes two phases: contour generation and sulcal surface generation. Phase 1 performs the segmentation, initial contour extraction, and final contour formation.

It arises from the cuneate sulcus, delimiting the cuneus anteriorly and the precuneus posteriorly. It runs behind the level of the splenium and may present numerous patterns: T- or Y-shape, straight, or ramified into more branches.