LUMBAR VERTEBRA-SPINOUS PROCESS

From NeuroRehab.wiki

SUMMARY

1. Roughly horizontal, hatchet shaped
2. Thickened posteriorly for attachment of the supraspinous ligament

MUSCULAR ATTACHMENTS
3. Interspinales
4. Multifidus
Typical-lumbar-vertebra-grays-illustration-4.jpeg

Image: Case courtesy of Craig Hacking, Radiopaedia.org. From the case rID: 82813


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.