front matter 1

Roof plateRoof plate

Floor plateFloor plate

Dorsal root

Ventral root

Ventral horn

interneurons

Ventral horn

interneurons

Intermediate

interneurons

Intermediate

interneurons

Dorsal root

bifurcation zone

Fasciculus gracilis

Dorsal root

collateralization zone

Lissauer's

tract?

Lissauer's

tract

Dorsal

funiculus

Dorsal

horn

Substantia

gelatinosa

Substantia

gelatinosa

EpendymaEpendyma

Central

autonomic

area

Central

autonomic

area

Lamina ILamina I

Laminae

IV-V

Laminae

IV-V

Central canalCentral canal

ankle and

foot?

ankle and

foot?

thigh?thigh?

hip?hip?

lower

trunk?

lower

trunk?

leleg?g?

Dorsal median septum

Ventral median fissure

Ventral white

commissure

Ventral white

commissure

Ventral gray

commissure

Ventral gray

commissure

L a t e r a l f u n i c u l u s

L a t e r a l f u n i c u l u s V e n t r a

l f

u n i c

u l

u s

V e n t r a

l f

u n i c

u l

u s

Ventral horn

motoneuron

columns

Ventral horn

motoneuron

columns

PLATE 36B