| Lumbar enlargement | |
|---|---|
| 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.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
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