Lumbar vertebra L5

The fifth lumbar vertebra (L5) is the last and largest lumbar vertebra and it is located between the L4 and the first sacral bone (S1). L5 is characterised by the presence of a larger body and smaller spinous process, and is involved in the lumbosacral joint, or symphysis to enable flexion, extension, and a slight lateral flexion.  
« Back to Glossary Index