Combined Science GCSE
Hormonal signalling and control
What Hormonal signalling and control means in Combined Science GCSE, as defined for AQA.
Definition of Hormonal signalling and control
Check what you remember
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Reference: AQA
TSH is the key intermediate signal, making the thyroid gland release more thyroxine, while high thyroxine inhibits the hypothalamus and pituitary.
Topics that use Hormonal signalling and control
- Feedback systems (HT only) (AQA GCSE)
Related terms
- 'Flight or fight'
- Adrenaline
- Hypothalamus, pituitary and thyroid axis
- Negative feedback
- Thyroxine
- Adrenal glands
- Basal metabolic rate
- Stability of internal conditions
Using Hormonal signalling and control in the exam
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