Rolandic Anatomy
Pars Interarticularis of Vertebral Arch
AI-powered interactive skeletal anatomy for medical and surgical education
The "bridge" between the facet joints of the spine. A stress fracture here is called "Spondylolysis" (common in gymnasts); if it breaks on both sides, the vertebra will slide forward (Spondylolisthesis), potentially crushing the nerves.
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Educational content only. Not medical advice. For clinical decisions, consult authoritative sources and qualified clinicians.