Cunningham Memoirs Volume 7

Cunningham Memoirs Volume 7

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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. 1892 edition. Excerpt: ...(1) that the lower end of the fissure of Rolando also holds relatively the same place on the cerebral surface in the two sexes; and (2) that at no period of growth does the fissure of Rolando exhibit in its position what we might safely regard to be sexual differences. "TJeber einige Unterschiede des Grosshirns nach dem Geschlecht," Archiv f. Anthrop. May, 1882. f Das Stirnhirn. Leipzig, 1890, p. 44. The following Table gives the relative position of the fissure of Rolando at different periods of life in the two sexes: --Topography Op The Fissure Of Eolando In The Two Sexes. Mesial Length of the Cerebrum = 100; Lateral Length of the Cerebrum = 100. The figures in this Table are slightly different from those given in the preceding Table, which deals with the general indices. This is due to the fact, that in the determination of the sexual question a smaller number of hemispheres were examined. Eberstaller, as we have mentioned, has shown that in the adult, if there is any sexual difference, it is one in favour of the frontal lobe of the female. It is curious to note that the above Table shows the same in each period of growth, but the differences are extremely trifling. This is interesting in the light of what we shall afterwards note in connexion with the upper end of the fissure in the anthropoid ape. Eberstaller has pointed out that the mesial border of the left hemisphere is slightly longer than that of the right hemisphere, but notwithstanding this the upper end of the fissure of Rolando has precisely the same relative position in both. The measurements which I have made of adult cerebral hemispheres have led me to very nearly the same results. In forty-five right hemispheres the average upper fronto-Rolandic index was 53-l; more

Product details

  • 12-17
  • Paperback
  • 189 x 246 x 7mm | 236g
  • United States
  • English
  • black & white illustrations
  • 123690320X
  • 9781236903204