Cervical
7
Thoracic
12
Lumbar
5
Sacrum
1, composed of 5 vertebrae
coccyx
1, composed of 5 vertebrae
thoracolumbar aponeurosis (thoracolumbar fascia)
a broad, diamond-shaped sheet of fascia across the
posterior mid- and low-back; gives origin to internal oblique, tranverse abdominis, and part of latissimus
dorsi