| Term | Definition |
|---|
| C1-C7 | Smallest and lightest vertebrae, short spinous processes, large vertebral foramina |
| C1 | The atlas; no body or spinous process, anterior and posterior arches; articulates w/ occipital condyles |
| C2 | The axis; common vertebrae; unique because of its dens, allows it to articulate with atlas |
| T1-T12 | Thoracic vertebrae; 2 facets and 2 demifacets, prevents flexion and extension |
| L1-L5 | Lumbar vertebrae; weight-bearing; short thick pedicles and laminae |
| S1-S5 | Sacrum, form posterior wall of pelvis |
| Coccyx | Tailbone; 4 (or 3-5) fused vertebrae |
| Bony thorax | Composed of thoracic vertebrae dorsally, ribs laterally, sternum & costal cartilages anteriorly |
| Sternum | Flat bone; fusion of 3 bones, superior manubrium, body, & inferior xiphoid process |
| Ribs | 12 pairs all attaching posteriorly to thoracic vertebrae |
| Vertebrosternal ribs | "true" ribs; first 7 superiorly attach directly via costal cartilage |
| Vertebrocondral ribs | "false" ribs; ribs 8-10 attach indirectly via costal cartilage |
| Vertebral ribs | "floating" ribs; ribs 11-12; no anterior attachment |
| True rib | Consists of head, neck, tubercle, and shaft |
Combine with other sets
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