Volume 2

The physiology of the foetus, liver and spleen / [G.C. Holland].

  • George Calvert Holland
Date:
1831
Catalogue details

Licence: Public Domain Mark

Credit: The physiology of the foetus, liver and spleen / [G.C. Holland]. Source: Wellcome Collection.

    104/272 (page 68)
    and growth during the time previous to a con- nexion being established between the uterus and the chorion ; others, who advanced a dif- ferent opinion, were inclined to think that the foetus is altogether indebted for its nutrition to the fluids in which it is immersed. In sup- port of the latter supposition it is stated, that these exist at a period when it cannot possibly have other means of sustenance. Our knowledge of the mode in which the human embryo is generated is very limited and imperfect, but the reasoning I shall em- ploy, in pointing out the different provisions which nature has furnished for the mainte- nance of embryotic and foetal life, requires no deep insight into the mysteries which envelope this subject. — When the embryo is observed about the third week “il est alors,” as ADELON remarks, “oblong, vermiforme, renflé a son milieu, obtus a lune de ses extrémités, ter- mine en pointe mousse a l'autre, droit ou fai- blement courbe en avant. — I] nest alors qu’ un petit corps gélatineux, d’un blanc grisatre, demi-opaque, sans consistance, long de deux a trois lignes, et du poids de deux a. trois grains. —I] est réduit au torse; il n’y a pas encore en lui trace dela téte, on voit seulement