The lumbar spine, or lower back, consists of five vertebrae labeled L1 through L5. Learn all about lumbar spine anatomy on Spine-health. | Spine-health

Need a better understanding of lower back pain? Discover the basics of lumbar disc anatomy — how your spinal discs function, what causes disc bulges or herniation, and why proper posture matters. | Spine-health

Need to understand what lumbar nerve roots are and how they affect back pain, sciatica, or leg numbness? This video breaks down the lumbar spine anatomy, nerve root function, and common issues like herniated discs, spinal stenosis, and pinched nerves. Whether you're a medical student, chiropractic patient, or just looking to learn more about lower back pain causes and treatments, this is your go-to guide | Spine-health