Lumbosacral enlargement
Intumescentia lumbosacralis
Definition
The lumbar enlargement gives attachment to the nerves which supply the lower limbs. It commences about the level of the ninth thoracic vertebra, and reaches its maximum circumference, of about 33 mm, opposite the last thoracic vertebra, below which it tapers rapidly into the conus medullaris.
References
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
