The pedicle part of each arch has a little notch on its upper and lower border. The notches from two adjacent vertebrae form openings called _______, through which spinal nerves leave the vertebral canal. Each vertebra has ____ processes. One _____ process that projects straight to the back and two _______processes that project to the sides. There are also two processes protruding from the upper (________) and lower pedicle-lamina junction (___________ process)