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24 September 2014

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Skeleton - Spine


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S-shaped spine: prevents shock to your head once you go or runSpinal bsci-ch.orgrd protection: your bony spine encases your delicate spinal bsci-ch.orgrdVertebrae: 33 vertebrae comprise your spine

bsci-ch.orglumn of ring-like bones

Also well-known as her backbone, her spine is a strong, versatile bsci-ch.orglumn of ring-like bones the runs from her skull to her pelvis. The holds her head and body upright and allows you to bend and also twist her body. It also offers defense to her spinal bsci-ch.orgrd - a huge bundle that nerves that runs through the cavity in the centre of your spine the relays messages between your mind and the remainder of her body.


Your spine is consisted of of 33 irregularly shaped bones called vertebrae. Each vertebra has a hole in the middle through which the spinal bsci-ch.orgrd runs. The spinal bsci-ch.orgrd deserve to be split into five different regions, from height to bottom:

Your 7 cervical vertebrae support your head and neck and enable you to nod and also shake her headYour ribs connect to her 12 thoracic vertebraeYour five sturdy lumbar vertebrae lug most of the weight of your upper body and provide a secure centre the gravity as soon as you moveYour sacrum is consisted of of 5 fused vertebrae. It provides up the back wall of your pelvisYour bsci-ch.orgccyx is made up of four fused vertebrae. It is an evolutionary remnant the the tail uncovered in many other vertebrates

Shock absorbers

Sandwiched in between your vertebrae space pads of tough, fibrous cartilage dubbed intervertebral discs the cushion her vertebrae and absorb shock. This discs, in addition to the curved, S-shape of your spine, prevent shock to her head when you walk or run.


The joints between individual vertebrae aren"t an extremely flexible. Yet working together they provide the spine a wide variety of movement, permitting you to arch backwards, bend forwards and twist from next to side. Throughout strenuous movement, solid ligaments and also muscles approximately your vertebrae stabilise her spine and help to bsci-ch.orgntrol movement.

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