Lænderyggen

Lænderyggen, also known as the lumbar spine, refers to the lower part of the human spine. It consists of five vertebrae, labeled L1 through L5, located between the thoracic spine (upper back) and the sacrum (pelvic bone). These vertebrae are the largest in the spine, designed to bear significant weight and provide support for the upper body. The lumbar spine allows for a wide range of motion, including bending forward, backward, and to the sides.

This region of the spine is crucial for posture and mobility. The intervertebral discs between the lumbar vertebrae act as shock absorbers, cushioning the bones during movement. Strong muscles in the abdominal and back regions support the lumbar spine, contributing to core stability. Due to the substantial forces it endures, the lænderyggen is a common site for back pain and injuries, such as herniated discs, muscle strains, and degenerative changes. Understanding the anatomy and function of the lænderyggen is important for maintaining spinal health and preventing discomfort.