Lumbar Spine Anatomy Biology Diagrams Your lumbar spine is the lower back region of your spinal column or backbone. It consists of five bones (L1-L5). Other structures in or around your lumbar spine are your intervertebral disks, spinal cord and nerves, muscles, tendons and ligaments. Your lumbar spine supports the weight of your body and allows a wide range of body movements. The lumbar spine is located in the lower half of the vertebral column, inferior to the thoracic vertebrae/rib cage and superior to the pelvis and sacrum.. The lumbar vertebrae are five in number and desginated as vertebrae L1-L5.They are primarily responsible for bearing the weight of the upper body (and permitting movement) and consequently represent the largest individual segments of the
Anatomy of the Lumbar Spine . In a normal, healthy spine, the five lumbar vertebrae stack on top of one another in a centered alignment. While all vertebrae have approximately the same shape, the lumbar bones are the largest. This is because they carry a larger load transmitted from the top of the head down to the lower spine.
Lumbar vertebrae: anatomy of the bony lumbar spine Biology Diagrams
The lumbar spine is the third region of the vertebral column, located in the lower back between the thoracic and sacral vertebral segments.. It is made up of five distinct vertebrae, which are the largest of the vertebral column. This supports the lumbar spine in its main function as a weight bearing structure. The lower back (where most back pain occurs) includes the five vertebrae in the lumbar region and supports much of the weight of the upper body. The spaces between the vertebrae are maintained by intervertebral discs that act like shock absorbers throughout the spinal column to cushion the bones as the body moves. Ligaments hold the vertebrae in place, and tendons attach the muscles to the
The lumbar spine also houses and protects the spinal cord's nerves as they exit towards the lower body. Location. The lumbar spine is located in the lower back, between the thoracic spine (mid-back) and the sacrum (pelvic region). It is the region just above the buttocks. [6] Structure and Anatomy
Structure, Function, Anatomy, Location Biology Diagrams
The normal anatomy, as well as potential problems in the lumbar spine, are better understood by focusing on a spinal motion segment. Read more about Spinal Anatomy and Back Pain. A single lumbar motion segment is comprised of: Two consecutive vertebrae, such as L4-L5, stacked vertically. lumbar spine anatomy *Check out my YouTube video on lumbar spine and disc anatomy for a less comprehensive, but quicker, review of this complex subject matter. Lumbar Spine and Disc Anatomy The Nucleus | The Annulus | The Endplate | Lumbar Spine Nerves | Disc & Endplate Nerves General Lumbar Spine & Disc Anatomy. The lumbar spine (low back) is made up of five lumbar vertebrae (backbones) that
