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Chirpractor Phoenix Basic Structures of The Spine
The Bones of your spine are called vertbrae: they are stacked one on top of the other, forming a long, thin, tapering column form top to bottom. The different shapes and sizes of the vertebrae allow for varying types of movement-for instance, your neck moves more freely than your mid back because of the ways the bones are constructed. There are seven thin vertebrae in the neck, twelve vertebrae in the midback, and five in the lower back.
At the bottom of your spine there are five vertebrae atht fuse in early childhood into a triangular-shaped bone (the sacrum). The sacrum is a part of the spine; it joins the trunk to the legs and is held to the pelvis by a mass of important crisscrossing ligaments.
Between each of the bones of the spine lies a spongy cartilage called a disc. The disc is made of two kinds of cartilage: a hard outer ring and a soft, spongy, liquid like center. The discs give you back a bouyancy and the resilience to absorb between 500 and 1,500 pounds of shock, depending on your age. The bones and discs are held in place by thousands and thousands of ligamnent fibers that fo from vertebrae to vertabrae.
Each vertabrae has two bony arms that meet in the back, enclosing a hole in the middle. These form a long canal, which houses and protects the spinal cord. Nerves, the messengers of our nervous system, exit from the spinal cord through an opening on the side of each vertebra.
There are about 2,000 muscles in the back and neck that control movement. Although pains in the back and neck are perceived as coming from the muscles, muscles in fact are rarely the cause of pain.
It is highly recommended if you are experiencing any type of head, neck or back pain to visit a chiropractor.
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