Lumbar vertebrae refer to the five spinal vertebrae that are located in the lower back region of the human body. These vertebrae are critical for proper support and mobility of the spine, providing a foundation for movement and flexibility in the lower half of the body. Other synonyms for lumbar vertebrae include lower back vertebrae, lumbar spine bones, and lumbar vertebrae column. Additionally, they can also be referred to as the L1 to L5 vertebrae based on their numerical order in the spine. No matter the terminology used, maintaining good lumbar spine health is essential to a healthy and active lifestyle.