front matter 1

Sp

in

oc

ep

ha

li

c

tr

a

ct

s

?

Sp

in

oc

ep

ha

li

c

tr

a

ct

s

?

VVentral funiculusentral funiculus

Ventral corticospinal tract?

VVentral grayentral gray

Intermediate grayIntermediate gray

Lateral

funiculus

Lateral

funiculus

Vestibulospinal tract?

Dorsal grayDorsal gray

Myelinated terminals of Fasciculus gracilis

dorsal root collaterals

Dorsal funiculus

Dorsal root

bifurcation zone

Dorsal root

collateralization zone

Lissauer's tract

Lateral

corticospinal

tract

Lateral

corticospinal

tract

Central canal

surrounded by ependyma

Central canal

surrounded by ependyma

Clarke's

column

Clarke's

column

S

p

in

o

c

e

r

e

b

e

l

l

a

r

t

r

a

c

st

?

S

p

in

o

c

e

r

e

b

e

l

l

a

r

t

r

a

c

st

?

Subgelatinosal pleSubgelatinosal plexusxus

Reticulated areaReticulated area

Lateral

reticulospinal tract?

Lateral

reticulospinal tract?

VVentral white commissureentral white commissure

VVentral gray commissureentral gray commissure

Dorsal median septum

Ventral

median fissure

Intra

s

p

i

n

a

l

t

r

a

c

t

s

?

Intra

s

p

i

n

a

l

t

r

a

c

t

s

?

See the matched cell body stained section in Plates 85A and B

PLATE 84B