Nine Common Ligaments

Question 1

What is the maximum number of common ligaments identified with a vertebral couple?

Answer 1

8

Question 2

What is the reason that 9 common ligaments are identified but only 8 will be attached at any specific vertebral couple?

Answer 2

the ligamentum nuchae and supraspinous ligaments attach to the spinous tubercles, but only one of these will be identified at a single vertebral couple