Diseases of the nervous system / by Judson S. Bury.

  • Judson Sykes Bury
Date:
1912
Catalogue details

Licence: Public Domain Mark

Credit: Diseases of the nervous system / by Judson S. Bury. Source: Wellcome Collection.

    48/856 (page 20)
    A lesion of tlie semi-circular canals or of the vesti¬ bular nerve tends to produce disturbance of equili¬ brium; the patient feels giddy and may find it impos¬ sible to stand. In Meniere’s disease such disturbance is frequently associated with tinnitus and deafness, and then the cochlear is affected as well as the vestibular nerve. Fig. 12.—To show how the nucleus of the sixth nerve acts as the centre for conjugate deviation of both eyes to the same side, and also its connection with the auditory nuclei. (A. Bruce.) (3) The ocular path. In all probability there is a connection between the centres for ocular movements and the cerebellum, for it is by the position of our eyes that we unconsciously estimate our relation to objects seen. It is thus seen that the cerebellum receives impulses from the muscles through its inferior peduncles, from the semi-circular canals and the nuclei of the oculo¬ motor nerves through its middle peduncles, and from the cerebrum through its superior peduncles. Accord¬ ing to Sherrington, the cerebellum is the “ head ganglion of the proprio-ceptive system,” that is of afferent impulses chiefly from the labyrinth and the muscles of the trunk and limbs. These impulses reach