The neck is the area of the spine that connects the head to the torso. It consists of the first 7 cervical vertebrae and is responsible for a wide range of functions related to supporting and moving the head, protecting the spinal cord, and transmitting nerve signals.

The lumbar area is located in the lower part of the spine and consists of five large vertebrae called lumbar vertebrae. These vertebrae are larger and stronger than the others because they bear most of the body's weight. The lumbar spine refers to the lower back area, which plays a critical role in providing core stability and supporting the...