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 spine, also known as the vertebral column or spinal column, is a column of 26 bones in an adult body â 24 separate vertebrae interspaced with cartilage, and then additionally the sacrum and coccyx.... Click to read more below.
Your spine is made up of three segments. When viewed from the side, these segments form three natural curves. The c-shaped curves of the neck (cervical spine) and lower back (lumbar spine) are called lordosis. The reverse c-shaped curve of the chest (thoracic spine) is called kyphosis.These curves are important to balance and they help us to stand upright.bnormal curvatures of the spine are also referred to as spinal deformity. These types of conditions include kyphosis of the thoracic spine (hunchback) and lordosis of the lumbar spine (swayback).