On aphasia, or loss of speech : and the localisation of the faculty of articulate language / by Frederic Bateman.

Date:
[1890]
Catalogue details

Licence: Public Domain Mark

Credit: On aphasia, or loss of speech : and the localisation of the faculty of articulate language / by Frederic Bateman. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

    29/438 (page 17)
    DESCRIPTION OF THE CEREBRAL CONVOLUTIONS. 1/ and ascends from without inwards from the fissure of Sylvius to the great median fissure which receives the fjilx cerebri; it has been variously described as the posterior, transverse, or ascending convolution. Tire three other convolutions of the superior division are very tortuous and complicated; they have all an antero- posterior direction, and running side by side, extend from before backwards over the whole length of the frontal lobe, terminating behind at the transverse frontal, into which convolution they all three enter; they are distinguished by the names of first, second, and third frontal convolutions. The first and second frontal con- volutions call for no special remark, but the precise relations of the third are important. This convolution, by its superior border, is contiguous to the second frontal in its whole length; in reference to its inferior border, the anterior half is in contact with the most external orbital convolution, whereas the posterior half is free, and forms the superior border of the fissure of Sylvius, which separates it from the temporo-sphenoidal lobe. In consequence of this latter relation, the third frontal is sometimes called the superior marginal con- volution, the name of inferior tnargijial being given to the superior convolution of the temporo-sphenoidal lobe, which forms the inferior border of the fissure of Sylvius. In drawing asunder these two marginal convolutions which bound the fissure of Sylvius, the lobe of the msula is exposed, which covers the extra-ventricular nucleus of the corpus striatum. The result of these relations is that a lesion which is propagated from the frontal to the temporo-sphenoidal lobe, or vice versd, will pass almost necessarily by the lobe of the insula!