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of a vertebrate, in which the notochord (a flexible rod of uniform composition) found in all chordates has been replaced by a segmented series of bonesâvertebrae separated by intervertebral discs.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 cervical spine is the upper part of your spine that supports your neck. The cervical spine has seven vertebrae. The middle part of your back is your thoracic spine. It is made up of 12 vertebrae. The lumbar spine is your lower back and has five vertebrae. Spinal compression can occur in any of these areas.