front matter 1

Roof

plate

Roof

plate

Floor plateFloor plate

Central canalCentral canal

Ventral horn

interneurons

Ventral horn

interneurons

Intermediate

interneurons

Intermediate

interneurons

Dorsal root

bifurcation zone

Dorsal root

bifurcation zone

Fasciculus cuneatus

Fasciculus gracilis

Dorsal root

collateralization zone

Lissauer's

tract?

Lissauer's

tract

Dorsal funiculus

Dorsal

horn Substantia

gelatinosa

Substantia

gelatinosa

EpendymaEpendyma

Central autonomic areaCentral autonomic area
Lateral
cervical
nucleus

Lateral
cervical
nucleus

Lamina ILamina I

Laminae

IV-V

Laminae

IV-V

Central

cervical

nucleus?

Central

cervical

nucleus?

skull

and

neck?

skull

and

neck?

neck?neck?

shoulder?shoulder?

diaphragm?diaphragm?

Ventral root

Dorsal median septum

Dorsal intermediate 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

ic

u

l

u

s

V e n t r a l

f u n

ic

u

l

u

s

Ventral horn

motoneuron

columns

Ventral horn

motoneuron

columns

PLATE 30B