The term "small of back" refers to the anatomical region located in the lower part of the back, specifically the area between the lowest ribs and the buttocks. It is also known as the lumbosacral region or the lumbar region. This region is characterized by its curve inward, forming the small hollow that is typically present in the lower back.
The small of back plays a crucial role in supporting the body's weight and maintaining proper posture and stability. It is comprised of several important structures, including the lumbar vertebrae, which are the five bones that make up the lower spine, as well as the muscles, ligaments, and tendons that connect and support these vertebrae.
The muscles surrounding the small of back include the erector spinae, which run along the spine and help maintain an upright posture, as well as the oblique muscles, which provide stability and rotation of the torso. The ligaments and tendons in this area work to stabilize the lumbar spine and provide support during movement.
Due to its strategic location and numerous vital structures, the small of back is susceptible to various conditions and injuries, including muscle strains, sprains, herniated discs, and lower back pain. Therefore, it is crucial to maintain proper posture, engage in exercises that strengthen the muscles of the back, and avoid activities that might put excessive strain on this region.
