The centre in the cerebrum which controls the use of the hands is on the fringe of the region which seems to be concerned in mental operations.
We must beware of such fallacies as transferring our experience of pain to a Mesozoic reptile, with an ounce or two of cerebrum to twenty tons of muscle and bone.
The convolutions of the cerebrum were remarkable for their number, depth, and intricate foldings.
If one wishes to limit the mental activity to conscious intellectual effort, then and then only is he correct in considering the cerebrum or large brain as "the brain.
In short, it fills a place between the activities of the cerebrum and the medulla oblongata, having some of the characteristics of each.
The interior of the two hemispheres of the cerebrum is composed largely of connective nerves which doubtless serve to produce and maintain the unity of function of the mental processes.
The cerebellum, also known as "the little brain," lies just above the medulla oblongata, and just below the rear portion of the cerebrum or great brain.
One may be said never to have thoroughly acquired a set of muscular movements such as we have mentioned, until the cerebellum has taken over the task and relieved the cerebrum of the conscious effort.
An excess of spermin or ovarin causes congestion of the cerebrum and cerebellum and the nerve centres there, with consequent sexual erethism.
In the embryo of twelve weeks a great advance has taken place; the optic lobes or quadrigemina are still large, but the cerebrum is larger than all the remainder.
The nerve membrane of this hollow cerebrum is barely a fourth of a line thick.
The embryo cerebrum here represented measures but three lines vertically, four lines in length, and five lines in thickness.
The cerebrum is the place of motives, where, through these, the will becomes choice, i.
Cicero reports that some persons looked on some part of the cerebrum as the chief seat of the mind.
The cerebrum is not occupied with direct impressions from without but with the ideas of such impressions.
In this respect it differs from the cerebrum of the frog and other vertebrates.
A large part of the area of the outer layer of the cerebrum seems to be given over to some one of the different functions of speech, hearing, sight, touch, movements of bodily parts.
If the cerebrum is separated from the rest of the nervous system, the frog seems to act a little differently from the normal animal.
If through disease or for other reasons the cerebrum does not function, no will power is exerted, nor are intelligent acts performed.
The training of the different areas in the cerebrum to do their work well is the object of education.
The outer surface of the cerebrum is thrown into folds or convolutions which give a large surface, the cell bodies of the neurons being found in this part of the cerebrum.
The cerebrum has to do with conscious activity; that is, thought.
But the fish has not much need for thinking and its fore-brain or cerebrum is very small.
In front of the cerebrum lie the two small olfactory lobes, which receive the large olfactory nerve from the nostrils.
It is a quickly acting nervous and circulatory stimulant, acting principally on the cerebrum and causing a dilation of the peripheral blood vessels.
The furrows of thecerebrum are indicated by thick, and those of the cerebellum by finer lines.
The cerebrum lies in front and above, and has the familiar characteristic convolutions and furrows on its surface (Figures 2.
It is only in them that the cerebrum becomes so large as to cover all the other parts of the brain (Figures 2.
The large cerebrumis separated from the small cerebellum by a deep transverse furrow.
It is just the reverse in the higher Vertebrates, in which the first and third sections, the cerebrum and cerebellum, are exceptionally developed; while the middle brain and after brain remain small.
Behind these parts we find, between the cerebrum and cerebellum, a small ganglion composed of two prominences, which is called the corpus quadrigeminum on account of a superficial transverse fissure cutting across (Figures 2.
On general examination it divides into two parts, the cerebrum and cerebellum.
The fore-brain orcerebrum especially is much more developed in them than in the lower animals.
We can trace a similar gradual development in the fissures and convolutions that are found on the surface of the cerebrum of the higher mammals (Figures 2.
It was long thought that man had certain distinctive organs in his cerebrum which were not found in any other animal.
Above (in front) is thecerebrum with its extensive branching furrows; below (behind) the cerebellum with its narrow parallel furrows.
Wherefore, while they were with me, I sensibly apperceived a drawing back of the anterior part of the head towards the hinder part, thus of the cerebrum towards the cerebellum[kk].
Capitalizes His Cerebrative Instinct ΒΆ The Cerebral gets his name from the cerebrum or thinking part of the brain, because this is the system most highly evolved in him.
The name comes from the cerebrum or thinking part of the brain.
It is the lower or vegetative brain that may still exist and keep life intact when the functions of the cerebrum are destroyed.
Very much the same observations are applicable to the disturbances of the spinal cord and its envelopes in rheumatic fever as have been made in reference to those of the cerebrum and its coverings.
The physical organs in connection with whose activity consciousness is manifested are the upper and outer parts of the brain,--the cerebrum and cerebellum.
Continuing to grow by adding concentric layers at the surface, the cerebrum and cerebellum become much larger in birds and lower mammals, gradually covering up the optic lobes.
The last place in the world to which I should go for information about a state of things in which thought and feeling can exist in the absence of a cerebrum would be cerebral physiology!
In the higher apes the cerebrumbegins to extend itself forwards, and this goes on in the human race.
As we pass to higher mammalian forms, the growth of the cerebrum becomes most conspicuous, until it extends backwards so far as to cover up the cerebellum, whose functions are limited to the conscious adjustment of muscular movements.
In such a highly organized fish as the halibut, which weighs about as much as an average-sized man, the cerebrum is smaller than a melon-seed.
Now there is no consciousness except when molecular disturbance is generated in the cerebrum and cerebellum faster than it can be drafted off to the lower centres.
In the lowest vertebrate animal, the amphioxus, the cerebrumand cerebellum do not exist at all.
The creature begins life as an infant, with its partially developed cerebrum representing capabilities which it is left for its individual experience to bring forth and modify.
The cerebrum is totally unaffected by aconite, consciousness and the intelligence remaining normal to the last.
The poison depresses the medullary centers of the brain, but the cerebrum is hardly affected, which means the mind stays pretty clear until the coma that may supervene at the end.
As Preyer puts it, the activity of the cerebrum is a sort of respiration, while its repose is a sort of asphyxia of this organ.
As regards the vascular condition of the cerebrum during natural sleep, there seems to be at present a virtual agreement among physiologists.
The edges of the depressed portions of bone had become smooth, and united by new osseous matter, and the cerebrum must have accommodated itself to the new form of the inner cranial surface.
Instances have occurred where balls have lodged in thecerebrum without giving rise to serious symptoms of danger for a long time.
Certain murderers of vile propensities have been so changed by an operation on the cerebrum that they have no power of recalling their past life and are incapable of uttering an oath.
The government grants certain privileges of experimenting on her lowest class of criminals, and it is well nigh incredible what has been accomplished by cerebrum operations.
These Ploidites have distanced us in the study of the nervous system, including the intricate problems of the cerebrum and cerebellum.
But more wonderful, a thousand fold, is their ability to follow the course of thought in a living cerebrum after the brain has been made visible by a light more potent than the X ray.
The cerebrum with well-developed furrows covers the other portions of the brain.
The surface of the cerebrum is divided by a considerable number of tortuous and irregular furrows, about an inch deep, into "convolutions," as shown in Fig.
What connection is noticed between the cerebrum and mental power?
When the medullary substance of the cerebrum and cerebellum was cut into, there appeared a great number of bloody points.
There was no extravasation in any part of the substance of the cerebrum or cerebellum.
The cerebrum was partly removed; the external auditory meatus was preserved.
An iron nail covered with rust was discovered in his brain; from the history of his life and from the appearances of the nail it had evidently been lodged in the cerebrum since childhood.
Heysham records the birth of a child without a cerebrum and remarks that it was kept alive for six days.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "cerebrum" 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
