It is of Latin origin, and the meaning of Clarissa is most bright, most famous. Latin version of Clarice occasionally found in medieval documents and made famous by Samuel Richardson's novel Clarissa, also known as the History of a Young Lady (1748).
A Honor Society of Nursing (STTI) answered. A lumbar hernia an uncommon type of abdominal hernia that develops in the lumbar region of the back. The lumbar region is the area of muscles that cover the lower back, from the bottom of the rib cage to the top of the pelvis.
This is the ring of firm fibrous tissue that holds the softer nucleus pulposus in place. Prolapsed tissue from the nucleus pulposus presses on a nerve root, and causes pain down the leg. Almost all lumbar disc lesions occur in the spaces L[,4]/[,5] or L[,5]/S[,1]. Pressure on the S[,1] root causes pain down the back of the thigh, calf, and outer side of the foot. Pressure on the L[,5] root causes pain on the lateral aspect of the thigh and leg, and the dorsum of the foot.