front matter 1

(Michael S) #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

Dorsal median septum Fasciculus gracilis

Dorsal intermediate septum

Dorsal root
collateralization zone

Lissauer's
tract

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?

Ventral white
commissure

Ventral white
commissure

Ventral gray
commissure

Ventral gray
commissure

Edge artifEdge artifact stainingact staining

Central canal
surrounded by ependyma

Central canal
surrounded by ependyma

skull?skull?
diaphragm?diaphragm?

shoulder?shoulder?

Ventral
median fissure

See the matched myelin stained section in Plates 104A and B


Note the uniform light staining of the white matter in this and all other cell body stained sections in this specimen. That indicates
that myelination gliosis is completely fi nished, even in the lateral corticospinal tract, because nearly all tracts are either myelin-
ated or myelinating. Refer to the matching myelin stained section for the approximate locations of both corticospinal tracts, the
medial longitudinal fasciculus, the tectospinal, lateral reticulospinal, vestibulospinal, intraspinal, and spinocephalic tracts.

PLATE105B

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