Spinal canal

Source: Wikipedia, the free encyclopedia.
(Redirected from
Vertebral canal
)
Not to be confused with Central canal, vertebral foramen, or intervertebral foramen.
Spinal canal
thoracic vertebra viewed from above. (Spinal canal is not labeled, but the foramen in the center would make up part of it.)
Details
Identifiers
Latinc. vertebralis
MeSHD013115
TA98A02.2.00.009
TA21009
FMA9680
Anatomical terminology]

In

intervertebral foramina
under the corresponding vertebral pedicles.

In humans, the spinal cord gets outgrown by the vertebral column during development into adulthood, and the lower section of the spinal canal is occupied by the

L1/L2
level.

Structure

The vertebral canal is enclosed anteriorly by the vertebral bodies, intervertebral discs, and the

pedicles with the interval between two adjacent pedicles on either side creating an intervertebral foramen (allowing the passage of the spinal nerves and radicular blood vessels).[1]

The vertebral canal progressively narrows inferiorly.[1] It is wider in the cervical region to accommodate the cervical enlargement of the spinal cord.[2][3]

Contents

The outermost layer of the

anastomoses known as the vasocorona of the spinal cord and these supply nutrients to the canal. The epidural space contains loose fatty tissue, and a network of large, thin-walled blood vessels called the internal vertebral venous plexuses.[citation needed
]

Clinical significance

Spinal stenosis is a narrowing of the canal which can occur in any region of the spine and can be caused by a number of factors. It may be caused by cervical myelopathy.[4]

Spinal canal endoscopy can be used to investigate the epidural space, and is an important spinal diagnostic technique.[5][6]

History

The spinal canal was first described by Jean Fernel.[citation needed]

References

  1. ^
    ISBN 978-0-7295-3752-0
    .
  2. ISBN 978-0-7020-2913-4
    , retrieved 2020-11-03
  3. ^ Haran, Crishan. "Spinal canal | Radiology Reference Article | Radiopaedia.org". Radiopaedia.
  4. ISBN 978-0-7020-3056-7
    , retrieved 2020-11-03
  5. ISBN 978-1-4160-4836-7
    , retrieved 2020-11-03
  6. ISBN 978-0-7216-0334-6
    , retrieved 2020-11-03

External links

Wikimedia Commons has media related to Human spinal cord.
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