THORACIC VERTEBRA-COSTAL FACETS

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SUMMARY

1. The costal facets differentiate thoracic vertebrae from others

2. Part of the morphological neural arch and not the centrum

3. Actually consists of 2 pairs of demifacets, each (covered by hyaline cartilage) makes a separate synovial joint with the facet of the rib head

4. The upper demifacet lies between the upper border of the body & upper border of the pedicle, semicircular in outline & lies vertical

5. The lower demifacet lies on the lower border of the body, smaller & faces downwards
Bones-and-ligaments-of-the-vertebral-column-illustrations-14287c875e0410c23295ad6ce323663f0e92b5a1.jpg

Image: Case courtesy of OpenStax College, Radiopaedia.org. From the case rID: 42770.


Reference(s)

R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone. Get it on Amazon.
Drake, Richard L., et al. Gray's Anatomy for Students. Elsevier, 2023. Get it on Amazon.

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