MODULE 9 · CONCLUSION & ASSESSMENT
The disc was fixed. The pain was never about the disc
You now hold the spinal cordThe central nervous system structure that relays signals between the brain and body. — its tractsBundles of nerve fibers in the CNS that carry signals between brain regions., its reflex arcs, its autonomic outflow and the gate that modulates pain. Here we ask why a successful decompression left the pain behind.
Why the surgery worked and the pain stayed
The discectomy did exactly what it was meant to do: the root was decompressed and the mechanical problem was gone. Being told the pain should therefore be gone is what left Stina with nowhere to go.
Pain that outlives its cause is not imagined and not a failed operation. A cord bathed in inflammatory cytokines turns its gain up — light touch begins to hurt, and the nervous systemThe organ system that controls body functions using electrical and chemical signals. itself becomes the generator.
NOCICEPTIVE PAIN
A signal about damage
Proportionate to the injury, improves as the tissue heals, and resolves when the cause is removed.
CENTRAL SENSITIZATION
A gain problem in the cord itself
Outlives the injury. Light touch hurts, ordinary pain is amplified, and fixing the original lesion does not settle it.
Chart Clue #9 — logged
CLUE #9
Cytokine Driven Pain
Central sensitization, and pain that outlives its cause. This entry joins the diagnostic timeline the whole course is assembling.
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Check everything from Module 9
These activities assess the module as a whole — every part, not just one. Work down from low-stakes self-check to the graded quiz, then consolidate. Each H5P box below is waiting for its shortcode id.
Tier 1 · Self-check — warm up, ungraded
DIALOG CARDS · All parts
Module 9 Flashcards: Term → Meaning
Flip every core term the module introduced, in both directions.
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FIND THE WORDS · All parts
Module 9 Word Search
Recognize the module’s vocabulary in a grid — a painless first pass.
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CROSSWORD · All parts
Module 9 Terms Crossword
Definitions to terms across the whole module’s vocabulary.
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MEMORY GAME · All parts
Match the Structure to Its Function
Pair each structure this module built with what it actually does.
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Tier 2 · Graded — the module quiz
QUESTION SET · All parts
Module 9 Mixed Review
A mixed check drawing one or two questions from every part.
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QUESTION SET · All parts
Module 9 Image Check
Picture questions — identify structures on diagrams and slides.
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Tier 3 · Consolidate — lock in the big ideas
SUMMARY · All parts
Module 9 Key Takeaways
Choose the statement that survives scrutiny in each set.
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DRAG THE WORDS · Part 7
The Distinction in One Sentence
Rebuild the sentence that separates nociceptive pain from central sensitization.
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Where this goes next
Module 10 — The Brain & the Blood-Brain Barrier. A radiologist noted a few nonspecific white spots and suggested small-vessel changes or migraine. Nobody asked what was driving them. This module builds the brain and its barrier, then puts the spots beside the rest of the chart. Begin Module 10 →
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All Modules
- Anatomical Language, Membranes & Homeostasis
- Just Enough Chemistry
- The Cell & Its Transport
- Making Cells & Proteins
- The Integumentary System
- The Skeletal System
- The Muscular System
- Nervous Tissue & the Senses
- The Spinal Cord
- The Brain & the Blood–Brain Barrier
- The Autonomic Nervous System
- Special Senses (in developmentThe process of growth and differentiation.)
- The Endocrine System
- Blood
- The Heart
- Blood Vessels
- The Digestive System
- The Respiratory System
- The Urinary System
- Fluids, Electrolytes & Acid–Base Balance
- The Reproductive System
- The Immune System
List of terms
- spinal cord
- tracts
- nervous system
- development