Lumbar stenosis is a common spinal condition that affects millions of people, particularly older adults. It occurs when the spinal canal located in the lower back experiences narrowing, putting ...

At the lower end, the 11 lumbar, sacral, and coccygeal dermatomes are often grouped together as the lower extremity dermatomes. A spinal nerve root is a bundle of nerve fibers that branches off ...

The disc serves as a shock absorber between each lumbar bone. It also helps support your body weight and allow movement between each vertebra. The spinal cord is the bundle of nerve tissue that ...