neural arch

A vertebra is a bone that makes up the spinal column. Each vertebra has a neural arch, also called a vertebral arch, which is a bony or cartilaginous structure. This arch is located behind the main part of the vertebra, known as the vertebral body.12

The neural arch is formed by the fusion of two pedicles and two laminae. Together with the back of the vertebral body, it creates a space called the vertebral foramen. This foramen is crucial because it's the passage through which the spinal cord runs. The interlocking tabs of the neural arch, called zygapophyses, limit the spine's range of motion.13