Page 111 - The Miracle of Human Creation

THE CREATION OF A HUMAN BEING FROM A CELL

On the left we see an embryo
uterine cavity
embedded in the walls of the
uterus (blastocyst). The em-
bryo finds a place in the
uterus where there are plenty
trophoblast
of blood vessels and lodges
there. Just as a seed thrown
on the ground spreads out
roots and sprouts, so the em-
blastocyst bryo continues to grow and
cavity
makes for itself new channels
deep into the tissues that will
supply its nourishment. What
accomplishes this are special
cells, called trophoblasts, in
the outermost layer of the
endometrial gland embryo.

endometrial capillary
endometrium

stopper. This is a very important feature, because the embryo is now con-
nected to the mother's tissues and will be fed by the nutrients coming
from the mother's blood. It is necessary for the nutrients to enter, but it is
very important that the defensive cells in the mother's uterus not reach
the embryo along with the nutrients. So, the stopper system formed by
the placenta prevents the defensive cells in the mother's uterus from app-
roaching the embryo. But if the flow of blood from the mother is blocked,

how is the embryo to be nourished?
The answer to this question shows the perfection of the design found
in the structure of the cells. Tiny empty spaces found among the cells
which serve as the stoppers, are of such a size as to allow the nutrients ne-
eded by the embryo to be drawn from the mother's blood plasma. Oxy-
gen, nutrient material and minerals from the mother's blood, pass
through these spaces and reach the embryo. But the defensive cells, beca-
use they are so large, cannot pass through these spaces. 31
If we think of the bridge that they establish between the mother and
the embryo, it would not be wrong to say that the work done by the trop-

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