Nine Common Ligaments

Question 1

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

Answer 1

eight

Question 2

what is the reason that nine common ligaments are identified but only eight 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