ap vertebral column
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15 terms
Terms | Definitions |
|---|---|
 atlas | first cervical vertebra carries the skull on its articular facets |
| axis | second cervical vertebra it has a process that extends superiorly from the vertebral body |
| body of the vertebrae | cervical 7, thoracic 12, lumbar 5, 5 fused to sacrum & 4 fused to coccyx=total of 33 |
| intervertebral disk | between each body in the vertebrae is a disk of cartilage |
| intervertebral foremina | an opeing btw the pedicles of adjacent vertebrae |
| transverse process | a lateral process that extends from the junction of the pedicle & lamina of the vertebrae site for muscle attachment on the thoracic vertebrae there is an articular surface for ribs |
| lamina (LAM-in-uh) | is a plate of bone that is an extension of the pedicle. located btw the transverse process & the spinous process of the vertebrae |
| pedicle | a bony projection that extends posteriorly from each side of the vertebral body. connects the body w/the transverse process |
| coccyx | most inferior portion of the vertebral column. formed by fusion of 4 coccygeal vertebrae. articulates superiorly w/sacrum |
| sacrum | a triangular bone that is formed by 5 fused vertebrae.sacrum & 2 oscoxae form pelvis. articulates with these bones at the sacroiliac joint. forms the posterior part of the pelvis |
| transverse foramina/foramen | cervical vertebrae have these. these are openings in each transverse process. allow for passage of the vertebral arteries |
| spinous process of vertebrae | a posterior process of the vertebrae that protrudes midline and projects inferiorly. important site of muscle attachment. |
| spinal (vertebral) foramen | is the opening formed by the body & the vertebral arch of the cervical, thoracic & lumbar vertebrae. contains spinal cord, meninges, epidural fat & blood vessels big opening |
| neural arch | the curve of bone formed by the pedicle and lamina of the vertebrae |
| odontoid process/dens (O-DONT-oyd) | a process that extends superiorly from the vertebral body of the axis (2nd cervical vertebrae) |
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