Chapter 12
The Central Nervous System
467
12
(a) Cross section of spinal cord and vertebra
(b) The spinal cord and its meningeal coverings
Epidural space
(contains fat)
Pia mater
Spinal meninges
Arachnoid mater
Dura mater
Bone of
vertebra
Subdural space
Subarachnoid
space
(contains CSF)
Dorsal root
ganglion
Body
of vertebra
Dorsal funiculus
Dorsal median sulcus
Central canal
Ventral median fissure
Pia mater
Arachnoid mater
Spinal dura mater
Gray commissure
Dorsal horn
Gray
matter
Lateral horn
Ventral horn
Ventral funiculus
Lateral funiculus
White
columns
Dorsal root
ganglion
Dorsal root
(fans out into
dorsal rootlets)
Ventral root
(derived from several
ventral rootlets)
Spinal nerve
Figure 12.28
Anatomy of the spinal cord.
(a)
Cross section through the spinal cord
illustrating its relationship to the surrounding vertebral column.
(b)
Anterior view of the spinal
cord and its meningeal coverings.
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