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  • we're going to talk about the anatomy of the cervical spine or the neck

  • the neck is relatively simple

  • this is the front

  • and of course this is the back of the neck this bone happens to be missing on

  • the model but probably intact in your neck

  • the cervical spine is essentially a series of vertebra separated in the

  • front

  • by the disc

  • the disc is the shock absorber it allows impact and it will absorb shock and it allows

  • motion

  • in the back of the spine we have these paired joints

  • these joints

  • guide the motion of the spine forward and backward and side to side

  • in the center of the spine

  • is the spinal cord living in that boney tunnel

  • and at each level in between the vertebra nerve roots exit and either runs

  • down your shoulder in arms or runs up the back of your head

  • and these of course intervene or go to the muscles and the skin and give you

  • sensation

  • and give you a position sense and also give you more strength

  • this is a close-up

  • of a model of the cervical spine it demonstrates the nerve hole that the

  • nerve exits out of

  • you'll see that when you bend backwards that nerve hole actually gets smaller

  • and when you bend forward that nerve hole gets larger that's important if you

  • have either a bone spur or a disc herniation you won't want to bring

  • your neck back because that'll hurt your neck shoulder and arm you want to keep

  • your head a little bit forward

  • it also works with lateral bending if you bend away from that side

  • the nerve hole opens up and if you bend toward that side

  • the nerve hole gets smaller so lateral bending to the side

  • will cause more pain

  • lateral bending away from that side

  • will cause less pain

  • another important aspect of the cervical spine is the

  • spinal canal itself where the spinal cord lives this canal changes in shape

  • with bending forward and backward and if you'll see when you bend forward the

  • spinal canal actually enlarges by about thirty percent

  • and when you bend backwards the spinal canal narrows this is important if the

  • spinal canal is crowded by a disc herniation or by a bone spur if you happen

  • to have a blow to the head driving the head backward that can cause compression

  • of the spinal cord and an injury conversely bending forward tends to open the canal

  • and relieve the pressure on the spinal cord

we're going to talk about the anatomy of the cervical spine or the neck

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B1 US spinal spine nerve canal cervical bending

Anatomy and Motion of the Cervical Spine | Neck Conditions | Vail Orthopedic Spine Surgeon

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    masasama posted on 2020/06/19
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