ATARMAxxing · WACE Human Biology revision notes
Body fluid regulation (ADH, aldosterone, thirst) and gas concentration control
Homeostasis
What this note covers
- Fluid balance tracks water and salt inputs and outputs
- ADH adjusts nephron water reabsorption
- Aldosterone adjusts sodium reabsorption
- Thirst and organ systems coordinate restoration
- Medullary control balances respiratory gases
- Fluid and gas data need correct quantities and limits
6 sections · 11 key terms & formulas · 6 common mistakes
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