Sp
in
oc
ep
h
a
li
c
tr
a
c
t
s
Sp
in
oc
ep
h
a
li
c
tr
a
c
t
s
VVentral funiculusentral funiculus
Ventral
gray
Ventral
gray
Intermediate
gray
Intermediate
gray
Lateral
funiculus
Lateral
funiculus
Vestibulospinal tract?
Dorsal
gray
Dorsal
gray
Lateral corticospinal tract
(dense reactive glia)
(myelinating)
(myelinated)
Myelinated terminals of
dorsal root collaterals
Dorsal funiculus
Dorsal root bifurcation zone
Fasciculus gracilis
Dorsal root collateralization zone
Lissauer's
tract
Lissauer's
tract
Subgelatinosal pleSubgelatinosal plexusxus
Reticulated areaReticulated area
myelination
gradient
myelination
gradient
I
n
t
r
a
sp
inal t
ra
c
ts
I
n
t
r
a
sp
inal t
ra
c
ts
S
p
i
n
o
c
e
r
e
b
e
ll
a
r
tr
a
c
st
S
p
i
n
o
c
e
r
e
b
e
ll
a
r
tr
a
c
st
Ventral median fissure
Dorsal median septum
VVentral gray commissureentral gray commissure
VVentral white commissureentral white commissure
Central canal
surrounded by ependyma
Central canal
surrounded by ependyma
Lateral
reticulospinal
tract?
Lateral
reticulospinal
tract?
Myelinated fibers
in Clarke's column
Myelinated fibers
in Clarke's column
See the matched cell body stained section in Plates 111A and B
PLATE 110B