This is the calloso-marginal sulcus, so called because it separates the callosal gyrus, which lies between it and the corpus callosum, from the marginal gyri nearer the margin of the brain.
Gyri and Sulci, on the outer surface of the Cerebral Hemisphere.
These gyri are separated from each other by fissures and sulci, some of which are considered to subdivide the hemisphere into lobes, whilst others separate the gyri in each lobe from each other.
Hence the corpus callosum is a connecting or commissural structure, which brings the gyri of the two hemispheres into anatomical and physiological relation with each other.
The Gyriand Sulci on the Mesial Aspect of the Cerebral Hemisphere, r, Fissure of Rolando.
The peripheral part of each hemisphere, which consists of grey matter, exhibits a characteristic folded appearance, known as gyri (or convolutions) of the cerebrum.
This is usually H-shaped, and the gyri are therefore anterior, posterior, external and internal.
Defn: A convoluted ridge between grooves; a convolution; as, the gyri of the brain; the gyri of brain coral.
In the occipital lobe, on the contrary, the gyri were complete in number and of regular arrangements.
The island of Reil on the left side had fewer and flatter gyri than that of the right side, and resembled in its general aspect the first impression of the brain of an orang-outang.
On the left side gyri and sulci were few and simple but typical, the external perpendicular occipital sulcus being interrupted by a broad crossing gyrus.
In no less than six hemispheres of 15 brains were these supplementary gyrifound more or less complete.
The projecting fibres, such as those of crus and capsule and the great ganglia, are not as massive as in man, but they are nearly equal to, and in still lower forms exceed, those connecting the gyri with each other.
The latter were greatly hollowed out on the orbital face, and the gyri here found were few, simple, and atypical.
The fissure was very deep, its posterior wall was slightly bevelled, and covered several secondary gyriof its anterior walls.
There also seems to be a strong tendency to form annectant gyri in the upper part of the parieto-occipital fissure.
Ecker, figure of the human embryo; on the development of the gyriand sulci of the brain; on the sexual differences in the pelvis in man; on the presence of a sagittal crest in Australians.
The closer the first of these bridging gyri lies to the longitudinal fissure, the shorter is the external parieto-occipital fissure" (loc.
As to the sculpturing of the brain surface by gyri and sulci we still lack any good racial characters.
We have no definite and certain knowledge as to the significance of the gyri and sulci in the brain; but this does not invalidate the general proposition that relates them in some way with mental power.
The troll rushed off lamenting loudly; but from all the heights around came laughter and derision and calls of: "Gyri Soupsmeller, Gyri Soupsmeller!
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "gyri" in a variety of sentences. We hope that you will now be able to make sentences using this word.
