Lumbar enlargement
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| Lumbar enlargement | |
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| Diagrams of the medulla spinalis. (Cervical enlargement labeled at center right.) | |
| Latin | intumescentia lumbosacralis |
| Gray's | subject #185 752 |
The lumbar enlargement (or lumbosacral enlargement) gives attachment to the nerves which supply the lower limbs.
It commences about the level of T11, and reaches its maximum circumference, of about 33 mm., at L1 (lumbar vertebra), below which it tapers rapidly into the conus medullaris.
An analogous region for the upper limbs exists at the cervical enlargement.
Additional images
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Spinal cord. Spinal membranes and nerve roots.Deep dissection. Posterior view.
External links
- lesson6spinalcord&coverings at The Anatomy Lesson by Wesley Norman (Georgetown University)
- 02:08-0102 at the SUNY Downstate Medical Center - "Vertebral Canal and Spinal Cord: Regions of the Spinal Cord"
- n3a5p3 at the University of Arkansas for Medical Sciences - "Spinal Cord, Fetus, Posterior View"
This article incorporates text from a public domain edition of Gray's Anatomy.
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