What is the number of lumbar vertebrae in the human body?

The human body has a total of five lumbar vertebrae, which are located in the lower back region. These vertebrae are labeled L1 through L5 and are larger and more robust than the other vertebrae, as they need to support more weight and withstand greater stress during activities like lifting and bending. The lumbar vertebrae play a crucial role in providing stability to the lower back, allowing for flexibility and movement while also protecting the spinal cord and supporting the body’s posture. This anatomical structure is fundamental in athletic training, as understanding the vertebral column's configuration is vital for injury prevention and rehabilitation.