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Updated: June 9, 2025
What, therefore, seemed the least liable to objections of any, was that the chief sensorium, or head-quarters of the soul, and to which place all intelligences were referred, and from whence all her mandates were issued, was in, or near, the cerebellum, or rather somewhere about the medulla oblongata, wherein it was generally agreed by Dutch anatomists, that all the minute nerves from all the organs of the seven senses concentered, like streets and winding alleys, into a square.
There were the cerebral lobes, or largest part of the forebrain, enormously developed and overhanging the cerebellum, or great lobe of the hindbrain, and completely covering the lobes of the midbrain. On the cerebrum I even thought I could detect for I have a smattering of anatomy the usual convolutions, and the grooves dividing the cerebrum into two hemispheres.
Every Lemur which has yet been examined, in fact, has its cerebellum partially visible from above, and its posterior lobe, with the contained posterior cornu and hippocampus minor, more or less rudimentary.
The next instant another pile of matches sent up a wavering flare in the gloomy, terrifying twilight. Frederick mentally cut out the young man's cerebrum and cerebellum for an anatomical examination, proceeding strictly according to the rules of dissection, as he had so frequently done in actuality.
The exaggerated afferent impulses reaching the brain as a result of trauma, inhibit the action of the nuclei in the region of the fourth ventricle and cerebellum which maintain the muscular tone, with the result that the muscular tone is diminished and there is a marked fall in the arterial blood pressure.
In what sense is it reflex? How does secondary reflex action lessen the work of the nervous system? State the special functions of the nerves, ganglia, spinal cord, bulb, cerebellum, and cerebrum. State the importance of the formation of correct habits. *To demonstrate Nerve Pathways.*—A smooth board, 2x6 ft., is painted black, and upon this is drawn in white a life-size outline of the body.
In the cortex and in the cerebellum, the changes in the brain-cells were in every instance more marked than in the medulla. There is also strong NEGATIVE evidence that traumatic impulses are not excluded by ether anesthesia from the part of the brain that is apparently asleep.
Every Marmoset, American monkey, old-world monkey, Baboon, or Man-like ape, on the contrary, has its cerebellum entirely hidden, posteriorly, by the cerebral lobes, and possesses a large posterior cornu, with a well-developed hippocampus minor. Drawings of the internal casts of a Man's and of a Chimpanzee's skull, of the same absolute length, and placed in corresponding positions.
This requires explanation. The second mistake is, that this Lithopaedus is not an author, but a drawing of a petrified child. The account of this, published by Athosius 1580, may be seen at the end of Cordaeus's works in Spachius. Mr. Good God! cried my father, what havock and destruction must this make in the infinitely fine and tender texture of the cerebellum!
The characters of the brain vary immensely, nothing being less constant than the form and size of the cerebral hemispheres, and the richness of the convolutions upon their surface, while the most changeable structures of all in the human brain, are exactly those on which the unwise attempt has been made to base the distinctive characters of humanity, viz. the posterior cornu of the lateral ventricle, the hippocampus minor, and the degree of projection of the posterior lobe beyond the cerebellum.
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