front matter 1

VVentral funiculusentral funiculus

Ventral horn

motoneurons

Ventral horn

motoneurons

Ventral horn

interneurons

Ventral horn

interneurons

Intermediate

interneurons

Intermediate

interneurons

Dorsal root bifurcation

zone

Fasciculus cuneatus

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

Lateral

cervical

nucleus?

Lateral

cervical

nucleus?

Lamina ILamina I

Laminae

IV-V

Laminae

IV-V

Central

cervical

nucleus?

Central

cervical

nucleus?

Central canal

surrounded by ependyma

Central canal

surrounded by ependyma

Damaged area in sectionDamaged area in section

neck?neck?

shoulder?shoulder?

arm?arm?

forearm?forearm?

wrist?wrist?

hand?hand?

forearm?forearm?

Dorsal median septum

Dorsal intermediate septum

Ventral white

commissure

Ventral white

commissure

Ventral gray

commissure

Ventral gray

commissure

Ventral

median fissure

Edge artifEdge artifact stainingact staining

See the matched myelin stained section in Plates 106A and B

Refer to the matching myelin stained section for the approximate locations of both corti-

cospinal tracts, the medial longitudinal fasciculus, the tectospinal, lateral reticulospinal,

vestibulospinal, intraspinal, and spinocephalic tracts.

PLATE 107B