Bassett Collection of Stereoscopic Images of Human Anatomy
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- Abdomen See All
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- Overview 7
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- Left Heart 33
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- Lung 39
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Lumbosacral meninges, spinal cord and nerve roots dissected from behind
Arachnoid membrane covering cauda equina
Image #219-6
KEYWORDS: Central nervous system, Lumbar region, Sacral region, Vertebral column.
Creative Commons
Stanford holds the copyright to the David L. Bassett anatomical images and has assigned Creative Commons license Attribution-Share Alike 4.0 International to all of the images.
For additional information regarding use and permissions, please contact Dr. Drew Bourn at dbourn@stanford.edu.
Lumbosacral meninges, spinal cord and nerve roots dissected from behind
Arachnoid membrane covering cauda equina
The dura has been removed so that the arachnoid membrane remains intact. The filum terminale (15) appears as a white strand deep to the arachnoid. An extensive subarachnoid space surrounds the nerve roots which form the cauda equina.
- Mamillary process vertebra L. III
- Inferior articular process vertebra L. II
- Iliocostalis muscle
- Lamina (arch of vertebra) L. IV
- Thoracolumbar fascia
- Ligamentum flavum
- Epidural space and cut margin of dura
- Fibrous attachment of dura to sacrum
- Cystic enlargement of dura covering roots of second sacral nerve (note resorption of neighboring bone)
- Gluteus maximus muscle
- Spinous process vertebra L. II
- Branch of lumbar artery
- Dura mater
- Arachnoid
- Filum terminale (beneath arachnoid)
- Sacral nerve II
- Level at which spinal subarachnoid space terminates
- Dural filum terminale