The
mature
spinal
cord
has
an
H
-
shaped
central
gray
area
which
contains
the
cell
bodies
of
the
spinal
neurons
.
This
is
surrounded
by
an
area
of
white
matter
which
contains
the
axons
that
ascend
the
cord
to
the
brain
,
or
that
descend
the
cord
from
the
brain
.
Spinal
Cord
Gray
Matter
The
spinal
cord
gray
matter
is
functionally
divided
into
three
major
areas
:
the
____________________
horn
,
the
ventral
horn
,
and
the
____________________
zone
.
Dorsal
Horn
:
-
contains
ascending
neurons
and
interneurons
-
relays
incoming
____________________
information
to
higher
centers
Ventral
Horn
:
-
contains
____________________
neurons
and
interneurons
-
controls
____________________
functions
of
the
____________________
of
the
trunk
and
limbs
Intermediate
Zone
:
-
contains
autonomic
pre
-
ganglionic
neurons
which
control
motor
functioning
of
the
____________________
-
also
contains
neurons
(
Clarke's
column
)
which
send
sensory
information
to
the
____________________
Spinal
Cord
White
Matter
The
spinal
cord
white
matter
is
functionally
divided
into
three
pairs
of
funiculi
:
the
posterior
funiculi
,
the
lateral
funiculi
,
and
the
anterior
funiculi
.
Posterior
Funiculi
:
-
contains
____________________
axons
which
relay
____________________
information
to
the
medulla
oblongata
Lateral
Funiculi
-
contains
sensory
,
motor
,
and
autonomic
axons
Anterior
Funiculi
-
contains
axons
descending
from
the
brain
which
relay
____________________
information
to
the
____________________
