Key spine anatomy and disc condition terms include vertebrae, discs, annulus, nucleus pulposus, herniation, degeneration, stenosis, and radiculopathy. Knowing the basic vocabulary helps patients understand their imaging report and discuss treatment options with confidence.
Key Takeaways
- Vertebrae are the bones; discs are cushions; nerves exit between them.
- Annulus = outer fibrous ring of the disc.
- Nucleus pulposus = inner gel center.
- Herniation = nucleus material through annular tear.
- Stenosis = narrowing of the spinal canal.
What This Guide Covers
- What is the basic spine structure?
- What is a disc made of?
- What are common disc conditions?
- What are common nerve-related conditions?
What is the basic spine structure?
Vertebrae stacked in cervical, thoracic, lumbar regions. Discs between each pair. Spinal cord through the canal. Nerve roots exiting at each level.
What is a disc made of?
Annulus fibrosus (outer fibrous ring) and nucleus pulposus (inner gel). The annulus is densely innervated and a common source of pain.
What are common disc conditions?
Herniation, bulge, annular tear, degeneration (DDD), Modic changes. Each has different implications for treatment.
What are common nerve-related conditions?
Radiculopathy (nerve-root irritation), stenosis (canal narrowing), claudication (exertional pain). Imaging plus exam distinguishes them.
Clinical Note
Patients sometimes feel intimidated by spine anatomy. Our clinical staff treats it as a translation task, walking through the terms in plain language during the consultation.
Frequently Asked Questions
What is the difference between a bulge and a herniation?
Bulge is generalized; herniation is focal protrusion through a tear.
Can a disc heal?
Annular tears can heal with the right conditions; severe degeneration is not reversible.
Why does the annulus hurt so much?
It is densely innervated; tears stimulate the nerves directly.
This content is for general informational purposes only and does not constitute medical advice, diagnosis, or treatment. It is not a substitute for evaluation by a qualified physician. Treatment decisions depend on your individual medical history and clinical findings. Schedule a consultation to discuss whether the procedure is right for you.
