Volume 1

The philosophy of health ; or, an exposition of the physical and mental constitution of man, with a view to the promotion of human longevity and happiness / by Southwood Smith.

  • Smith, Southwood, 1788-1861.
Date:
1847
Catalogue details

Licence: Public Domain Mark

Credit: The philosophy of health ; or, an exposition of the physical and mental constitution of man, with a view to the promotion of human longevity and happiness / by Southwood Smith. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

    63/422 (page 53)
    without the inevitable extinction of life. But the animal organs are not so much instruments of life as means by which a certain relation is established between the living being and external objects. And this difference in their office is the reason of the difference in their position. Existence depending on the action of the organic organs, they are placed in the interior of the body; they are fixed firmly in their situation in order that they may not be dis- turbed by the movements of locomotion ; they are enveloped in membranes, covered by muscles, placed under the shelter of bones, and every possi- ble care is taken to secure them from accident and to shield them from violence. Existence not being immediately dependent on the action of the organs of the animal life, they do not need to be protected from the contact of external objects with extraor- dinary care, but it is necessary to the performance of their functions that they should be placed at the exterior of the body. And there they are placed, and so placed as to afford an effectual defence to the organic organs. Thus the groundwork of the ani- mal is made the bulwark of the organic life. The muscles, the immediate agents by which voluntary motion is effected, and the bones, the fixed points and the levers by which that motion acquires the nicest precision and the most prodigious rapidity and power, are so disposed that, while the latter ac- complish, in the most perfect manner, their primary