Two years into an Arctic expedition, they were forced to abandon ship a thousand miles north of Siberia. The Best Nonfiction Books of 2014 William OâConnor December 14, 2014 Going to the library was like a treasure hunt, an expedition.
The vertebral column, also known as the backbone or spine, is part of the axial skeleton. The vertebral column is the defining characteristic of a vertebrate, in which the notochord (a flexible rod of uniform composition) found in all chordates has been replaced by a segmented series of bonesâvertebrae separated by intervertebral discs.
The spine is made up of 24 bones, called vertebrae. Ligaments and muscles connect these bones together to form the spinal column. The spinal column gives the body form and function. The spinal column holds and protects the spinal cord, which is a bundle of nerves that sends signals to other parts of the body.