Lamina
The bone which is located in the posterior portion of the vertebrae.
Laminectomy
The removal of the lamina, frequently done to relieve pressure on the nerves (spinal stenosis).
Laminotomy
A removal of a small portion of the lamina, frequently done to remove a portion of the disc.
Lordosis
The normal backward curve which occurs in the cervical and lumbar region.
Lumbar
The lowest portion of the spine. There are five lumbar vertebrae in the low back.