front matter 1

Spi

no

ce

ph

al

ic

tr

a

c

ts

?

Spi

no

ce

ph

al

ic

tr

a

c

ts

?

VVentral funiculusentral funiculus

Clarke's

column

Clarke's

column

Clarke's column

(displaced neurons)

VVentral grayentral gray

Intermediate grayIntermediate gray

Fasciculus gracilis

Dorsal root

Lateral

funiculus

Lateral

funiculus

Spinocerebellar

tracts

Spinocerebellar

tracts

Vestibulospinal tract?

Dorsal grayDorsal gray

Myelinated terminals of

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

Intr

asp

in

al

tr

a

ct

s

?

Intr

asp

in

al

tr

a

ct

s

?

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

See the matched cell body stained section in Plates 87A and B

PLATE 86B