____________________
____________________
is
similar
to
serum
without
most
of
the
____________________
.
It
bathes
and
provides
____________________
____________________
for
brain
and
spinal
cord
.
CSF
is
produced
by
the
____________________
____________________
in
____________________
and
____________________
____________________
.
There
are
special
____________________
cells
and
associated
blood
vessels
.
____________________
cells
and
____________________
cells
form
____________________
-
cerebrospinal
fluid
barrier
.
Absorption
of
fluid
is
in
____________________
____________________
.
Masses
of
arachnoid
tissue
extend
into
the
____________________
sinuses
.
