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vertebral column
vertebral column
The vertebral column is made up of different kinds of articulated bones (vertebrae) supporting the skeleton and protecting the spinal cord.
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atlas
First cervical vertebra supporting the head and supported by the axis.
axis
Second cervical vertebra supporting the atlas; it allows the head to rotate.
cervical vertebra (7)
Bony part of the neck forming the upper terminal part of the vertebral column.
thoracic vertebra (12)
Bony part supporting the ribs located between the cervical and lumbar vertebrae.
lumbar vertebra (5)
Bony part larger than the other vertebrae located between the dorsal vertebrae and the sacrum; it supports a major portion of the body’s weight.
cervical vertebra
sacrum
Bone made up of five fused vertebrae located between the lumbar and coccyx vertebrae.
coccyx
Bone made up of four to six fused vertebrae in the lower terminal part of the vertebral column, and articulating with the sacrum.
intervertebral foramen
Orifice located between two contiguous vertebrae on each side of the column allowing nerves to pass through.
intervertebral disk
Flat rounded cartilaginous structure separating two vertebrae; its elasticity allows the vertebral column to move.
vertebral body
Anterior bony cylinder of a vertebra surrounded by two transverse processes.
transverse process
Bony protuberance extending laterally from each side of the vertebra; the muscles are attached to it.