Book Description
Excerpt from The Chicago Medical Journal, 1873, Vol. 30: A Monthly Record of Medicine, Surgery and Collateral Sciences Thus, for example, if a hot body he applied to the hand or foot, the afferent or sensory nerve being in a healthy condition, trans mits to the nervous centre the impression of heat. The reception of this impression necessitates a determinate and invariable change in the nerve-cells of the centre, which are designed to receive that particular impression; this, change induces determinate and ln variable changes ln other cells of the same central ganglion, by means of which the functional energies of certain efferent nerves, (motor or trophic) are called into activity, and the appropriate changes in motion or nutrition are thus effected. The sensitive surface is withdrawn from contact with the burning body, and vesication, or some other tissue change, occurs at the surface of contact. This embodies the whole theory of reflex action - for you oh serve that I excluded the influence of the will entirely. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.