CB7.1Hormones and the endocrine system: pituitary as master gland, adrenaline; hormonal vs nervous responses

Notes

Gland	Hormone(s)	Target / effect
Pituitary	Many (FSH, LH, ADH, etc.)	Controls other glands — "master gland"
Thyroid	Thyroxine	Regulates metabolic rate
Adrenal	Adrenaline	Fight-or-flight response
Pancreas	Insulin, glucagon	Blood glucose regulation
Ovaries	Oestrogen, progesterone	Menstrual cycle; secondary sex characteristics
Testes	Testosterone	Secondary sex characteristics in males

Released by adrenal glands in response to stress or fear:

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Question 14 marks
Hormonal vs nervous response
(4 marks) Compare the speed and duration of hormonal and nervous responses. Give one reason why each type is suited to its function.
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AI-generated · claude-opus-4-7 · v3-edexcel-combined-science
Question 23 marks
Adrenaline effects
(3 marks) Explain how adrenaline prepares the body for a fight-or-flight response. Give three effects.
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AI-generated · claude-opus-4-7 · v3-edexcel-combined-science

CB7.1 — Hormones and the endocrine system

5-card SR deck for Edexcel Combined Science topic CB7.1

5 cards · spaced repetition (SM-2)