Anatomy Vocab
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each of the black spaces below before clicking
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| Vertebral Column or Spine | the spine, formed of a number of individual bones called vertebrae and two composite bones (sacrum and coccyx)
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| Vertebrae | Made up of the Sacrum, coccyx, cervical vertebrae, thoracic vertebrae, and lumbar vertebrae
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| Intervertebral Discs | the discs of fibrocartilage between the vertebrae
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| Herniated Discs | drying of the discs, along with a weakening of the ligaments of the vertebral column, predisposes older people with this.
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| Primary Curvatures | the spinal curvatures in the thoracic and sacral regions
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| Secondary Curvatures | the curvatures in the cervical and lumbar regions
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| Body or Centrum | disclike, weight-gearing part of the vertebra facing anteriorly in the vertebral column
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| Vertebral Arch | arch formed from the joining of all posterior extensions, the laminae and pedicles, from the vertebral body.
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| Vertebral Foramen | canal through which the spinal cord passes
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| Transverse Processes | two lateral projections from the vertebral arch
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| Spinous Process | single projection arising from the posterior aspect of the vertebral arch(actually the fused laminae)
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| Superior and Inferior Articular Processes | paired projections lateral to the vertebral foramen, allowing a vertebra to form joints with adjacent vertebrae
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| Cervical Vertebrae | form the eneck region of the spine
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| Atlas | the first cervical vertebra; articulates with the occipital bone of the skull and the second cervical vertebra (axis)
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| Axis | the second cervical vertebra; has a vertical projection called the dens around which the atlas rotates.
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| Dens | a large upright process which acts as the pivot point
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| Thoracic Vertebrae | are all typical. They are larger than the cervical vertebrae and are distinguished by the fact that they are the only vertebrae to articulate with the ribs.
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| Lumbar Vertebrae | have massive, blocklike bodies. Their short, hatchet-shaped spinous processes make them look like a moose head from the lateral aspect.
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| Sacrum | is formed by the fusion of five vertebrae
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| Coccyx | is formed from the fusion of three to five tiny, irregularly shaped vertebrae.
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