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Conditions & Injuries

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General Information

The human head weighs anywhere between 4-6kg in adults and comprises of abut 8% of our body mass. The neck, shoulders and upper back act as prime movers for the head and its special sensory system so that we can,for example, listen and look.Its a very important transitional point in the body and often susceptible to injury.

Here are some other interesting facts about the neck:
  • There are 37 separate joints functioning in many different ways to support movement of the whole body and all special senses of the head.
  • The neck is designed to be able to move in a wide range of directions.
  • The head moves on average 600 times per hour whether sleep or away (no other part of the musculoskeletal system moves at this rate).
  • The vertebrae of the neck are much smaller than the rest of the body and much more complicated.
  • The discs of the neck are grossly different from a physiological, biomechanical, anatomical, biochemically and embryological perspective.
  • After the age of 45, there is little or no nucleus pulposis (which is a gel like fluid within the disc).
  • Neck discs are ligamentous and dry, with little proteoglycan present.
  • Myelopathy (spinal cord compression) is much more common than Radiculopathy (nerve cpompression) in the neck.
  • It is one of the most vulnerable structures in the body unlike the well protected skull and chest cage.
  • The position of the neck provides clues on mood and attitude.
  • In one study, over 10% of the population recalled having at least 3 episodes of neck pain in the last year.