Bassett Collection of Stereoscopic Images of Human Anatomy

Dissection of anterior aspect of vertebral column

Sacral region.

Image #221-6

KEYWORDS: Lumbar region, Sacral region, Vertebral column.

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Higher resolution images are available for a fee. Contact Drew Bourn, PhD, MLIS.

Dissection of anterior aspect of vertebral column
Sacral region.
lumbosacral part of vertebral canal,opened and viewed from in front
1 . Intervertebral disc L. III-IV (pointer on anulus fibrosus)
2 . Anterior longitudinal ligament
3 . Body of vertebra L. III (partly resected)
4 . Anterior internal vertebral venous plexus
5 . Intervertebral disc L. IV - V (pointer on nucleus pulposus)
6 . Dura mater
7 . Fibrous attachment of dura to posterior longitudinal ligament (cut off)
8 . Sympathetic tnmk
9 . Upper pointer: Sacrum (body resected) Lower pointer: Remnant of intervertebral disc S. I - II
10 . Iliopsoas muscle
11 . Lateral sacral arteries
12 . Femoral nerve
13 . Sacral plexus
14 . External iliac artery
15 . Obturator nerve
16 . Coccygeus muscle (posterior border of pelvic diaphragm)
17 . Piriform muscle
18 . Internal vertebral venous plexus
19 . Transverse process of vertebra L. IV
20 . Ligamentum flavum
21 . Pedicle (arch of vertebra) L. V (cut across)
22 . Upper pointer: Spinal ganglion lumbar nerve V Lower pointer: Spinal branch iliolumbar artery
23 . Lateral femoral cutaneus nerve
24 . Obturator nerve
25 . Femoral nerve
26 . Lateral part sacrum
27 . Lumbosacral trunk
28 . Sacral nerve I (in pelvic sacral foramen)
29 . Dural filum terminale (coccygeal nerves fused with this at lower level)
30 . Sacral nerve II
31 . Sacral canal (lined by periosteum)
32 . Sacral nerve III
33 . Sacral nerve IV
34 . Sacral nerve V
35 . Sympathetic trunk
36 . Coccygeal nerve
37 . Coccyx (covered by periosteum)
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