Biology GCSE
thirst mechanism
What thirst mechanism means in Biology GCSE, as defined for OCR.
Definition of thirst mechanism
Check what you remember
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Reference: OCR
The hypothalamus stimulates thirst to encourage drinking when blood water potential falls, and suppresses it when excess water dilutes blood plasma.
Topics that use thirst mechanism
- Maintaining internal environments (OCR GCSE)
Related terms
- antagonistic hormones
- antidiuretic hormone
- blood glucose regulation
- Bowman's capsule and ultrafiltration
- collecting duct permeability
- dehydration
- Glucagon
- glycogen
Using thirst mechanism in the exam
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