Lumbar Spine Anatomy Diagram Biology Diagrams The lumbar spine comprises the lower end of the spinal column between the last thoracic vertebra (T12) and the first sacral vertebra (S1). The spinal cord in this region has protection from five durable and mobile vertebrae (L1-L5) that allow for the dispersion of axial forces. The spinal cord runs through the center of the vertebral column and terminates in the conus medullaris at the level 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 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. 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 spine anatomy 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 Definition and anatomy of the lumbar spine. The lumbar spine is part of the spinal column. Located between the dorsal spine and the sacrum, it is made up of 5 bones, or vertebrae, numbered from L1 to L5. The vertebrae are separated from each other by intervertebral discs. These discs help absorb shock and also facilitate back movement. 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.
