ELLA MARUS STUDIO / SCIENCE PHOTO LIBRARY ELLA MARUS STUDIO / SCIENCE PHOTO LIBRARY
The spine is the basic part of vertebrates' axial skeleton. The main function of the spine is to support the weight of the body, to protect the spinal cord and to facilitate the movements of head and torso. The vertebrae are connected with each other by cartilages, joints and ligaments. Human spine comprises 33-34 vertebrae.
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