The mind at work : a handbook of applied psychology / edited by Geoffrey Rhodes.

Date:
1914
Catalogue details

Licence: In copyright

Credit: The mind at work : a handbook of applied psychology / edited by Geoffrey Rhodes. Source: Wellcome Collection.

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    the spinal canal through bony apertures or canals. These cords are the nerves, and after their exit from the apertures between the bones, they divide like the branches of a tree, getting gradually smaller and smaller as they divide, until the terminal threads may be traced to every organ and structure of the body. The endings of these nerves are so fine that they can no longer be examined macroscopically; they can be traced only by means of the microscope. The whole of the body is permeated by these filaments, tiny branches going to such structures as small blood- vessels, or even to single cells. The surface of the brain is covered with deep furrows, the ridges between the furrows being described as convolutions. By means of these furrows and ridges it has been possible to mark out the surface of the brain geographically, as in a map; and such a mapping out is important, because it has been found that certain areas of the surface of the brain are associated with certain of the functions of the body; and it is necessary to be able to describe exactly the situation of any particular area. The more highly developed animals have the largest number of convolutions in the brain; and man has more convolutions than any other animal. If the substance of the brain or spinal cord is cut across, it is found that some portions of the 2