Which of the following statements are true of the vertebral column? (Read carefully and select all of the correct statements.)

A)There are 12 thoracic vertebrae and 8 cervical vertebrae.
B)Discs of fibrous cartilage form the joints between vertebrae.
C)The sacral and lumbar vertebrae each consist of 5 fused vertebrae.
D)Within the vertebral canal is the spinal cord.
E)The spinous and transverse processes provide for muscle attachment.
F)The backbone as a whole is flexible because it has so many gliding joints.