front matter 1

VVentral funiculusentral funiculus

Ventral horn

interneurons

Ventral horn

interneurons

Intermediate

interneurons

Intermediate

interneurons

Dorsal root

bifurcation zone

Fasciculus gracilis

Dorsal root

collateralization zone

Lissauer's

tract

Dorsal funiculus

Dorsal

horn

Dorsal

horn Substantia

gelatinosa

Substantia

gelatinosa

Lateral

funiculus

Lateral

funiculus

Central

autonomic

area

Central

autonomic

area

Lamina ILamina I

Laminae

IV-V

Laminae

IV-V

Dorsal median

septum

VVentral gray commissureentral gray commissure

VVentral white commissureentral white commissure

Ventral median fissure

Dorsal root

with band of

dense glia in

boundary cap

Central canal

surrounded by ependyma

Central canal

surrounded by ependyma

See the matched myelin stained section in Plates 90A and B

Refer to the matching myelin stained section for the approxi-

mate locations of the lateral corticospinal, vestibulospinal,

intraspinal, and spinocephalic tracts.

PLATE 91B