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Cervical meninges, spinal cord and nerve roots dissected from behind

Cervical spinal cord and nerve roots in relation to meninges, close-up view of fifth cervical nerve

Image #217-6

KEYWORDS: Central nervous system, Cervical region, Vertebral column, Overview.

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Cervical meninges, spinal cord and nerve roots dissected from behind

Cervical spinal cord and nerve roots in relation to meninges, close-up view of fifth cervical nerve

The spinal cord has been divided between the roots of the fifth and sixth cervical nerves. The arches of the fourth and fifth cervical vertebrae have been cut away to expose the roots, ganglion and dorsal ramus of the fifth cervical nerve. A branch of the right vertebral artery supplies the dura mater (17) and additional branches pass to the spinal cord with the dorsal and ventral roots.

1 .	Upper pointer: Fasciculus gracilis Lower pointer: Posterior median sulcus
2 .	Upper pointer: Cuneate fasciculus Lower pointer: Posterior intermediate sulcus
3 .	Lateral funiculus
4 .	Posterior internal vertebral venous plexus
5 .	Gray matter column
6 .	Upper pointer: Anterior spinal artery Lower pointer: Arachnoid
7 .	Dura mater
8 .	Dorsal roots cervical nerve V
9 .	Ventral root cervical nerve V
10 .	Posterior longitudinal ligament
11 .	Anterior internal vertebral venous plexus
12 .	Roots of cervical nerve VI (cut across)
13 .	Denticulate ligament
14 .	Arch of vertebra C. III (cut across)
15 .	Inferior articular process
16 .	Accessory filament of dorsal roots
17 .	Artery within epidural space
18 .	Pedicle (arch of vertebra) C. IV
19 .	Anterior tubercle vertebra C. IV
20 .	Vertebral artery (within transverse foramen)
21 .	Posterior tubercle vertebra C. IV
22 .	Spinal ganglion (note that dura fuses to nerve roots medial to the ganglion)
23 .	Dorsal branch cervical nerve V
24 .	Pedicle (arch of vertebra) C. V
25 .	Synovial fold
26 .	Superior articular surface vertebra C. VI