133
After
sexual
intercourse,
millions
of
sperm
swim
through
the
cervix
at
the
base
of
the
uterus
(womb).
They
swim
up
towards
the
fallopian
tubes
(oviducts),
and
then
along
towards
an
ovum.
The
first
sperm
will
bury
its
head
end
into
the
ovum,
and
the
nucleus
of
the
egg
(ovum)
will
fuse
with
the
nucleus
of
the
sperm
to
make
a
single
cell
-
the
first
cell
of
the
new
organism.
The
fertilised
ovum
starts
to
divide
into
a
ball
of
cells
as
it
moves
down
the
fallopian
tube
(oviduct)
towards
the
uterus
(womb).
When
it
gets
to
the
uterus,
it
sinks
into
the
wall
of
the
uterus
and
develops
a
set
of
blood
vessels
which
develop
very
close
to
the
mother's
blood
vessels.
This
area
of
the
uterus
will
be
called
the
placenta.
Drag the Tiles into position to put the segments of text into the correct order.
Unscramble the text by putting the words below into the correct order in the box above.

17
"millions",4
"cervix",10
"uterus",16
"swim",19
"fallopian",23
"ovum.",31
"first",33
"head",38
"(ovum)",49
"sperm",57
"cell",62
"organism.",70
"cells",81
"(oviduct)",89
"blood",113
"mother's",121
"placenta.",133
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