Hygiene of Nerves & Mind in Health and Disease

Hygiene of Nerves & Mind in Health and Disease

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 edition. Excerpt: ...something dwarfed and wholly or partially crippled on the other. If, on the contrary, the seat of the trouble is in the visual or the auditory centre (see Figs. 9 and 10), then there arise corresponding disturbances in cerebral vision or hearing (see above), which of course last throughout life. 4. Hydrocephalus or water on the brain is the consequence of the exudation of water into the cerebral ventricles. The brain is pressed apart, and so are the skull bones. A slight degree of the trouble is compatible with mental efficiency if the brain-substance has not suffered. With higher degrees there-come idiocy (Blodsinn) and arrested development. Hydrocephalic patients can be recognised at once by their tremendous skulls. 5. Other Brain Defects. There are a great many other kinds of defect in the brain, which sometimes depend upon original deformities in the plasm of the cell, and sometimes upon diseases of the embryonic brain. Unless the defects are small and localised they all lead to a more or less high degree of idiocy, as does the porencephaly already mentioned as soon as it is fairly large. Motor and sensory disturbances are also associated with these defects according to the region involved. Certain defects in the brain are not visible to the unaided eye, because they are only caused by very minute alterations in the brain substance. Here the microscope decides. But the result is the same; for it does not matter much so far as consequences are concerned whether a group of neurones is completely destroyed or only completely blocked in its operations by microscopic alterations of the tissue. 6. Idiocy in Apparently Normal Brains. It must be admitted there are cases of idiocy, and very deep-seated cases too, where neither gross nor...show more

Product details

  • Paperback | 80 pages
  • 189 x 246 x 4mm | 159g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236971809
  • 9781236971807