An oval facet faces posterolaterally. The inferior articular process arises from the lower border of the pedicle. The facet faces anteromedially. Similar to other vertebrae, discs are interposed between hyaline cartilage on the centrum of the vertebral bodies. The disc height is slightly less than cervical vertebrae.
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Reference article, Radiopaedia. They are positioned so that the superior demifacet of the inferior vertebrae articulates with the head of the same rib that articulates with the inferior demifacet of the superior rib.
For example, the inferior demifacets of T4 and the superior demifacets of T5 articulate with the head of rib 5. The length of the transverse processes decreases as the column descends. The positioning of the ribs and spinous processes greatly limits flexion and extension of the thoracic vertebrae. However, T5-T8 have the greatest rotation ability of the thoracic region. Thoracic vertebrae have superior articular facets that face in a posterolateral direction. The spinous process is long, relative to other regions, and is directed posteroinferiorly.
This projection gradually increases as the column descends before decreasing rapidly from T9-T The intervertebral disc height is, on average, the least of the vertebral regions. They alone articulate with the first rib; C7 has no costal facets. T1 does, however, have typical inferior demifacets for articulation with the second rib.
T1 also has a long, almost horizontal spinous process, similar to a cervical vertebra that may be as long as the vertebra prominens of C7. They also lack facets on the transverse processes. It varies by individual, but T10 may resemble the atypical nature of the 11 and 12 vertebrae. Verify now. Toggle navigation. Institutional subscriptions support Language. Keep me signed in. Forgot your password? Sign in with Facebook. Sign in with Apple. Transverse costal facet - Fovea costalis processus transversi.
Description The transverse costal facets are on the transverse process of thoracic vertebrae, for articulation with the corresponding costal tubercle.
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