How many lumbar vertebrae are present in the vertebral column?

The human vertebral column is composed of five lumbar vertebrae. These vertebrae are located in the lower back region and are labeled L1 through L5. They play a crucial role in supporting the weight of the upper body and providing flexibility and mobility to the spine. The structure of lumbar vertebrae is characterized by their larger size compared to thoracic and cervical vertebrae, accommodating the increased mechanical load in this region. The five lumbar vertebrae articulate with the thoracic vertebrae above and the sacrum below, contributing to the overall stability and support of the spinal column.