Simply, the furrows on the surface of the brain between the gyri.
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The brain. Sulci are the valleys, gyri are the hills when looking at the surface anatomy
Gyri are the folds in the brain that store memories. These are located on the cerebral cortex, along with the sulci.
There are actually four brain lobes. They are the frontal lobe, parietal lobe, temporal lobe, and occipital lobe. The other one, which some people call the fifth lobe but it acutally isn't, is the cerebellum. All of these five parts are put together by the cerebrum. The cerebrum is the outer layer of the brain. The cerebrum is seperated into two parts. The gyri and the sulci. The gyri is the raised part around all of the lines. The sulci is the lines around the raised part. Hope that helped (:
gyri
convolutions or gyri
These are the gyri (ridges or bumps) and sulci (furrows between the ridges). Certain patterns of gyri and sulci are common to all humans and are associated with certain functions. Many animals, especially those with large brains have gyri and sulci also.
The cerebrum
The Sulcus is a shallow furrow on the surface of the brain separating convolutions.
Parts of the Brain: Cerebrum-largest part of brain, 7/8 total mass of the brain. * 2 cerebral hemispheres: # ridges- gyri # grooves- sulci *Gyrus(gyri)-is a ridge on the cerebral cortex. Folds on the brain material. Many ridgescalled convolutions, or gyri, or gyrus, separated by grooves, mark the cerebrum's surface. *Sulcus(sulci)-shallow grooves on the brain. Generally, a shallow to somewhat deep groove is called a sulcus, or sulci, and a very deep groove is called a fissure.
If we didn't have wrinkles, our brains would be the size of a pillowcase. As brains grow, they fold in on themselves. It's said as you learn, your brain gets more wrinkles. I don't know if it's true, though.
The hills in the surface of the brain are called gyri (singular: gyrus), and the valleys are called sulci (singular: sulcus). Very deep sulci are called fissures. When locations are described in the brain, major sulci and gyri are often used as reference points, like familiar landmarks.Source: Sparknotes
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The inward folds of cerebral tissue are called fissures or sulci. The sulci is surrounded by other depressions or grooves known as gyri.
The brain is covered in ridges (gyri) ans grooves (sulci).
The inward folds of cerebral tissue are called fissures or sulci. The sulci is surrounded by other depressions or grooves known as gyri.
The infoldings of the brain are the sulci, and the outward foldings are the gyri.