This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1853 Excerpt: ...of the blood. The blood of the child does not go over into the circulation of the mother, to become decarbonized, but is oxygenized by being exposed in the finest ramifications of the placenta to the oxygen carried thither by the arteries of the uterus. Thus the great purpose of oxygenizing the blood is carried on without the necessity of inflating the lungs with atmospheric air, which, of course, would be impossible in fcet?J existence. The foetus, or young being in the womb, from this time up, grows and develops itself with astonishing rapidity, in the thousands of intricate parts which constitute the human organism. Though bound together by the vital force in one harmonious whole, the various parts of the different systems develop not all simultaneously, but gradually crystallize, as it were, into one whole body. This formative process consumes more than one-half of the uterine life of the new being. If no disturbing influences interfere, it will develop in a perfect manner; but if morbid causes should operate on the foetus, its harmonious development may be intercepted, and its growth arrested at any period during gestation, in certain parts of the system, while others develop themselves naturally. This fact explains the origin of those organic imperfections and deformities which characterize the so called monsters, whose singular appearance is sometimes attributed by the ignorant to mysterious causes. To this class of arrested foetal development belong also most of those cases, where children are born with marks on their bodies or limbs, not developed or even entirely wanting. It is not as yet sufficiently settled, whether such a state of things can be produced through the influence of the mother on the child, some physiologists denying its possibility...
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