Naked Science Forum
Life Sciences => Physiology & Medicine => Topic started by: neilep on 16/06/2008 20:47:02
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Dear Baby Experts,
LOL...somebody told me *tries to stop giggling*..that babies grow inside ladies tummys !!* breaks into hilarity*....
....LOL....we ALL know that babies are delivered by storks and here is the proof !
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Ewe know it, I know it....Storks know it !!
Anyway, ..*still giggling*....Ok answer me this then !!...How does baby get food when in tummy ?....what about baby poo poo and wee wee ?...does baby grow like an appendage then ?...ie..like an arm or leg ?
If baby does indeed grow in tummy does it come out starving ?
LOL..*sheepy gathers himself up and tries to control the bizarre nature of it all*
" goo goo gah gahh dribble drobble burp fart goo goo "
See ?...see ?...even our neighbours baby says it was delivered by stork !!...and it should know cos it's a qualified 6 week old baby !!..so there !!
Thanks
neil
Baby Delivery Questioner
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Well I don't know the whole process details but of course the baby receives its nutrition from the mother from the ambilica cord which is attached to the placenta and to the baby...
Here is a more detailed description!
see this link for the rest and some lovely illustrations of the human embryo and development!
http://www.bartleby.com/107/12.html
Henry Gray (1821–1865). Anatomy of the Human Body. 1918.
11. Development of the Fetal Membranes and Placenta
The Allantois (Figs. 25 to 28).—The allantois arises as a tubular diverticulum of the posterior part of the yolk-sac; when the hind-gut is developed the allantois is carried backward with it and then opens into the cloaca or terminal part of the hind-gut: it grows out into the body-stalk, a mass of mesoderm which lies below and around the tail end of the embryo. The diverticulum is lined by entoderm and covered by mesoderm, and in the latter are carried the allantoic or umbilical vessels. 1
In reptiles, birds, and many mammals the allantois becomes expanded into a vesicle which projects into the extra-embryonic celom. If its further development be traced in the bird, it is seen to project to the right side of the embryo, and, gradually expanding, it spreads over its dorsal surface as a flattened sac between the amnion and the serosa, and extending in all directions, ultimately surrounds the yolk. Its outer wall becomes applied to and fuses with the serosa, which lies immediately inside the shell membrane. Blood is carried to the allantoic sac by the two allantoic or umbilical arteries, which are continuous with the primitive aortæ, and after circulating through the allantoic capillaries, is returned to the primitive heart by the two umbilical veins. In this way the allantoic circulation, which is of the utmost importance in connection with the respiration and nutrition of the chick, is established. Oxygen is taken from, and carbonic acid is given up to the atmosphere through the egg-shell, while nutritive materials are at the same time absorbed by the blood from the yolk.