VVVentral funiculusentral funiculusentral funiculus
Ventral
corticospinal
tract
Ventral
corticospinal
tract
Central canal
with surrounding ependyma
Central canal
with surrounding ependyma
Ventral horn
motoneurons
Ventral horn
motoneurons
Ventral horn
interneurons
Ventral horn
interneurons
Intermediate
interneurons
Intermediate
interneurons
Dorsal root
bifurcation zone
Superficial fasciculus cuneatus
Deep fasciculus cuneatus
Superficial fasciculus gracilis
Deep fasciculus gracilis
Dorsal root
collateralization zone
Lissauer's
tract
Dorsal root
Dorsal funiculus
Dorsal horn
Substantia
gelatinosa
Substantia
gelatinosa
Lateral
funiculus
Lateral
funiculus
Central
autonomic
area
Central
autonomic
Lateral area
horn
motoneurons
Lateral
horn
motoneurons
Lamina ILamina I
Laminae IVLaminae IV-V-V
Clarke's
column?
Clarke's
column?
Lateral
corticospinal
tract
Lateral
corticospinal
tract
S
p
in
o
c
e
r
e
b
e
l
la
r
t
r
a
c
t
s
?
S
p
in
o
c
e
r
e
b
e
l
la
r
t
r
a
c
t
s
?
middle
trunk?
middle
trunk?
Ventral white
commissure
Ventral white
commissure
Ventral gray
commissure
Ventral gray
commissure
Ventral median fissure
Dorsal median septum
Dorsal intermediate septum
See the matched myelin stained section in Plates 67A and B
Refer to the matching myelin stained section for the
approximate locations of the lateral reticulospinal,
vestibulospinal, intraspinal, and spinocephalic tracts.
PLATE 68B