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MODULE 11:
The Autonomic Nervous System
PART 1 OF 7
Carried forward from the Spinal Cord module: a “neurogenic bladder” that empties on its own schedule. Add the chart notes nobody connected — racing pulse and roiling gut during attacks.
Slide 1 Transcript
PATIENT CHART
STINA
THIS PART
Age 45
PRESENTING WITH
Disabling facial pain, hearing loss, wire-but exhausted feeling
DIAGNOSIS
Dysautonomia
DRUGS PERSCRIBED
Anti-seizure Drugs
CHART CLUES
COLLECTED AS YOU GO
Multi-Organ Autonomic Dysfunction
‘Revved’ Flares
Autonomic Symptoms Track Inflammation
Trigeminal Neuralgia
Cochlear Hair-Cell Injury
Two Cranial Nerves Affected
Dysautonomia
Put your money down: Three separate problems, or one network?
Stina’s bladderA muscular organ that stores urine before excretion. emptied on its own schedule; elsewhere in the chart, unconnected, sat notes about a racing pulse and a roiling gut.
Pick the answer you believe now. We’ll come back to it later!
A Bladder That Wouldn’t Listen
Stina’s bladder had embarrassed her for years. It would urge with no warning, or refuse to empty on command — a “neurogenic bladder,” a urologist had written, treating it as a plumbing problem local to the pelvis. But she’d also noticed, during her worst flares, that her heart would gallop for no reason and her gut would cramp and churn. Three different systems misbehaving in the same windows of illness; three different notes in her chart, never read on the same staff.
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Slide 2 Transcript
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Slide 3 Transcript
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One Network Behind Three Rebel Organs
What ties a rebel bladder, a racing heart, and a roiling gut together is that all three are run by the same network: the autonomic nervous systemThe part of the peripheral nervous system that controls involuntary functions such as heart rate, di (ANS). The ANS is the involuntary division of the nervous systemThe organ system that controls body functions using electrical and chemical signals., controlling the organs we don’t consciously command — the heart, the airways, the digestive tract, the bladder, the blood vessels, the pupils. It operates beneath awareness, constantly adjusting to keep the internal environment stable. When the ANS itself becomes dysregulated — dysautonomia — the result isn’t one organ failing but several misfiring at once: exactly Stina’s pattern.
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Slide 4 Transcript
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Slide 5 Transcript
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The Autonomic Nervous System Control
Her bladder was never just a bladder problem. It was the autonomic nervous system announcing, in the only language it has, that the disease had reached the controlsVariables that remain constant to ensure a fair test..
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Slide 7 Transcript
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Slide 8 Transcript
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FINDING!
Multi-Organ Autonomic Dysfunction (Dysautonomia)
A neurogenic bladder, a racing pulse, and an unpredictable gut — filed as three unrelated complaints, but all governed by one involuntary network. New evidence reframes them as dysautonomia: multi-organ autonomic dysfunction. The scatter across specialties was hiding a single systemic pattern the module will prove.
Confirm or refute your bet: Three separate problems, or one network?
You committed to a guess: three problems, or one network? Now you know the ANS. Let’s re-read the chart.
Slide 7 Transcript
NEXT PART
If one network runs all those organs, how does it both speed the heart and calm the gut? The answer is two opposing pedals — and the next page puts your foot on each one.
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All pages for Module 11 — The Autonomic Nervous System
11.0 Module Overview
11.1 The Bladder That Won’t Listen
11.2 Two Pedals
11.3 Chemical Messengers
11.4 A Stab in the Face
11.5 The Fading Sound
11.6 Windows and Receivers
11.7 Autonomic Instability
11.8 Conclusion and Assessment
11.9 Evidence Behind the Case
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
- bladder
- autonomic nervous system
- nervous system
- controls
- development