Label the following structures:
1.
Denticulate ligament
2.
Subarachnoid space
3.
Posterior longitudinal ligament
4.
Arachnoid mater
5.
Dira mater
6.
Ligamentum flavum
7.
Dorsal root
8.
Dorsal root ganglion
9.
Mixed spinal nerve
10.
Anterior ramus
11.
Posterior ramus
12.
Vertebral artery ventral root
Ligamentum flavum
Denticulate ligament
Dura mater
Subarachnoid space
Arachnoid mater
Posterior longitudinal ligament
Label the following
structures:
1. Denticulate ligament
2. Subarachnoid space
3. Posterior longitudinal
ligament
4. Arachnoid mater
5. Dura mater
6. Ligamentum flavum
Dorsal root
Dorsal root ganglion
Mixed spinal nerve
Ventral root
Vertebral artery
Posterior
ramus
White ramus
communicans
Anterior
ramus
Sympathetic chain
1. Vertebral body
21. Posterior (dorsal) rami
2. Part of transverse process (with associated transverse
foramina – so must be cervical)
22. Sympathetic chain
3.
23. White ramus communicans
4. Spinous process (bifid, so must be cervical)
24.
5. Ligamentum flavum
25. Anterior median fissure
6. Posterior longitudinal ligament
26.
7. Vertebral artery
27. Fasciculus cuneatus
8.
28. Fasciculus gracilis
9. Dura mater (meningeal layer)
29. Posterior median sulcus
10.
30. Anterior funinculus
11. Arachnoid mater
31. Lateral funinculus
12.
32. Posterior funinculus
13.
33.
14.
34. Gray commissure
15.
35. Central canal
16. Denticulate ligament
36. Anterior (ventral) horn
17. Ventral root (motor)
37. Lateral (intermediate) horn
18. Dorsal rott (sensory)
38. Posterior (dorsal) horn
19. Dorsal root ganglion
39.
REQUIRED LABELLED FEATURES
1. Posterior funinculus, or,
column
14. Anterior median fissure
2. Lateral funinculus, or, column
23. Dorsal root
3. Anterior funinculus, or, column
24. Dorsal root ganglion
4. Anterior white commissure
25. Ventral root
5. Dorsal, or, posterior horn
26. Mixed spinal nerve
6. Lateral horn
27. Dorsal ramus of spinal nerve
7. Ventral, or, anterior horn
28. Ventral ramus of spinal nerve
8. Gray commissure
29. Gray ramus communicantes
9. Central canal
30. White ramus communicantes
10. Posterior median sulcus
Gray commissure
Posterior horn
Posterior horn
Lateral horn
Lateral horn
Anterior horn
Anterior horn
Posterior
funinculus,
or, column
Posterior
median
sulcus
Lateral
funinculus,
or, column
Anterior
white
commissure
Anterior
funinculus,
or, column
Anterior
median
fissure
Dorsal
roots
Dorsal root
ganglia
Dorsal root
Dorsal root
ganglion
Ventral roots
Ventral root
Spinal
nerve
Dorsal
ramus of
spinal
nerve
Dorsal
ramus of
spinal
nerve
Spinal nerve
Ventral
ramus of
spinal
nerve
Ventral
ramus of
spinal
nerve
What are the anatomical features in this model that tell you
from what general region this spinal cord section was taken?
You can see a lateral horn in the gray matter, as well as gray and white
rami communicates, so this section must be from the thoracolumbar
region (T1 – L2). (Recall that the cells bodies for visceral efferents are
located in the lateral horn. And pre- and postganglionic sympathetic
axons travel in the gray and white rami communicates.)
gray rami
communicates
gray rami
communicates
white rami
communicates
white rami
communicates
Where would the sympathetic chain ganglia be located?
Where would the sympathetic chain ganglia be located?
sympathetic chain
ganglia
sympathetic chain
ganglion
Dorsal
root
ganglion
Dorsal
horn
Posterior
ramus
Anterior
ramus
Dorsal root
(sensory)
Lateral
horn
White ramus
communicans
Gray ramus
communicans
Spinal
nerve
Ventral root
(motor)
Ventral
horn
External
intercostal mm.
Dorsal or
posterior
roots
Medulla
oblongata
Cerebellum
C7
Right
vertebral
artery
Tentorium
cerebelli
Dura mater
Arachnoid
mater
Rib 12
Sympathetic
chain ganglia
Filum terminale
Epidural space
Dura mater
Cauda equina
Medullary cone
White rami
communicans
Spinal nerve
Rectus abdominis
muscles
Gray rami
communicans
Dorsal root
ganglion
Sympathetic
trunks
Ventral
root