Berend E Westerhof*
Two cross over cycles and one spinous interaction are back to (behind) the vertebral body. In the middle of each pair of vertebrae are two little openings called intervertebral foramina. The spinal nerves leave the spinal rope through these openings. From behind, the vertebral segment presents in the middle line the spinous cycles. In the cervical area (except for the second and seventh vertebrae), these are short, even, and bifid.
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