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Across 2. carries all the brain's signals to the rest of the body 4. the vertebrae of the back 5. people have the same number of neck bones as this animal 10. rump bone 12. the vertebrae of the neck 14. the tailbone 15. the number of vertebrae babies are usually born with

Down 1. flat, little round disks that have a jellylike center and are covered by really tough - yet flexible - outer rings of cartilage 3. provides protection to the spinal cord 6. the _____________ of the spine comes from the structures between the bones and intervertebral disks 7. the vertebrae of the chest 8. the adult vertebral column is made of about _________ bones 9. the _____________ of the disks may diminish over a lifetime because the moisture content of the disk may decrease 11. comes from the Latin sacer, meaning "sacred" 13. there are over 13,000,000 of these in the spinal cord