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ATARMAxxing · WACE Human Biology revision notes

Body fluid regulation (ADH, aldosterone, thirst) and gas concentration control

Homeostasis
3 · Homeostasis and disease

What this note covers

  1. Fluid balance tracks water and salt inputs and outputs
  2. ADH adjusts nephron water reabsorption
  3. Aldosterone adjusts sodium reabsorption
  4. Thirst and organ systems coordinate restoration
  5. Medullary control balances respiratory gases
  6. Fluid and gas data need correct quantities and limits

6 sections · 11 key terms & formulas · 6 common mistakes

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WACE Human Biology · revision note 10 of 20