Lumbar enlargement

Lumbar enlargement
Diagrams of the medulla spinalis. (Cervical enlargement labeled at center right.)
Details
Identifiers
Latin	intumescentia lumbosacralis
Dorlands /Elsevier	i_11/12457957
TA	A14.1.02.003
FMA	74895
Anatomical terminology []

The lumbar enlargement (or lumbosacral enlargement) is a widened area of the spinal cord that gives attachment to the nerves which supply the lower limbs.

It commences about the level of T11 and ends at L2, and reaches its maximum circumference, of about 33 mm. Inferior to the lumbar enlargement is the conus medullaris.

An analogous region for the upper limbs exists at the cervical enlargement.

Spinal cord. Spinal membranes and nerve roots.Deep dissection. Posterior view.

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)