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Radiology

Chapter 17 Vocab Part 1 & 2

QuestionAnswer
Atlas The C1 vertebra; a ring-like structure with no vertebral body and a very short spinous process.
Axis The C2 vertebra; the vertebra on which the atlas rotates so the head can turn from side to side.
Cervical spine The most superior section of the vertebral column; it consists of seven vertebrae with lordotic curve.
Coccyx The most inferior section of the vertebral column, consisting of three to five vertebral segments; also called the tailbone.
Dens A tooth or tooth-like structure or process; the odontoid process of the axis.
Facet The articular surface of intervertebral joints. These are located on each of the four articular processes that extent superiorly and inferiorly from the vertebral arch.
Intervertebral disk A pad of fibrocartilage between vertebral bodies that cushions vertebral motion and absorbs shock.
Kyphotic curve, kyphosis A posterior convex curvature of the spine.
Lamina Any thin, flat layer of membrane or other bulkier tissue; the right or left posterior portionof the vertebral arch
Lordotic curve, lordosis An anterior convex curvature of the spine.
Lumbar spine The five vertebrae located inferior to the thoracic spine.
Pedicle A narrow stalk, stem, or tube of tissue attached to a tumor, skin flap, bone, or organ; the right and left anterior portions of the vertebral arch on either side of the vertebral body.
Sacrum The five vertebral segments inferior to the lumbar vertebrae, which fuse together in adulthood to form a solid bony structure.
Scoliosis An abnormal lateral curvature of the spine.
Stenosis Narrowing of a passageway, such as an intervertebral foramen.
Thoracic spine The dorsal spine, which consists of 12 vertebrae witha kyphotic curve; located inferior to the cervical spine.
Vertebra An one of the 33 bones (26 in adults) of the spinal column.
Created by: hollieritter