If the taenia be drawn to one side the hippocampal fissure is exposed, at the bottom of which the grey matter of the gyrus hippocampi may be seen to form a well-defined dentated border (the so-called fascia dentala).
There is some slight evidence of a connexion between this sense and a region of the hippocampal gyrus near to but behind that related to smell.
But there are a number also which show that the motor defect which is a well-ascertained result of injury of the pre-central gyrus is sometimes unaccompanied by any obvious defect either of touch or of muscular sense.
It will be seen that the callosal gyrus, isthmus, and hippocampal gyrus form nearly a complete ring, and to this the name of limbic lobe is given.
It will thus be seen that the hippocampal gyrus is continuous posteriorly with the callosal gyrusabove by means of the isthmus, and with the gyrus lingualis below.
The callosal gyrus, which is also called the gyrus fornicatus from its arched appearance, is continued backward round the posterior end of the corpus callosum, and so to the mesial surface of the temporal lobe.
Just in front of the anterior end of the calcarine fissure the callosal gyrus is constricted to form the isthmus which connects it with the hippocampal or uncinate gyrus.
The choroid plexus of the pia mater turns round the gyrus hippocampi, and enters the descending cornu through the lateral part of the great transverse fissure between the taenia hippocampi and optic thalamus.
If its lips are separated the fascia dentata orgyrus dentatus and the fimbria continued from the posterior pillar of the fornix are seen.
Electric stimuli applied to a part of the uppermost temporal gyrusexcites movements of the ears and eyes in the dog.
A difficulty besetting the investigation of the function of the angular gyrusis the fact that lesion of the cortex there is likely to implicate the underlying tract of fibres in its damage.
Close beneath the cortex of the angular gyrusruns a large tract of long fibres which pass from the visual cortex (see above) to the auditory cortex (see below) in the superior temporal gyrus and to the lower part of the frontal lobe.
In one case the first occipital convolution sank nearly beneath the surface, the next occipital gyrus projecting over it, forming a parietal operculum.
The calcarine fissure passed completely across the gyrus frontitatus on both sides in two cases, on one side in four cases.
The gyrus occipitalis primus is separated from the upper parietal lobe by the sulcus parieto-occipitalis, a formation that, according to Gratiolet, exists in many apes.
And pyramidal wall of rock Are battle-grounds for waging lust: A clashing lance spun vypers round The gyrus rind where helots clad Each Thaumaturgist in a frock, The sign of which spake added trust Unto each ghoul-king's able hound.
The autopsy showed a yellowish, quasidiffluent softening of the size of a small egg in the first occipital gyruson the right side.
Lesions of the middle or posterior temporal region are particularly important for speech, and produce more marked disorder than lesions of the angular gyrus or the supramarginal gyrus.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "gyrus" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: cerebellum; cerebrum; convolution; fissure; lobe; mantle
