Homeostasis & ResponseDiagram

Endocrine Glands — Adrenaline and Thyroxine

Part of Hormones & Behaviour · GCSE GCSE Biology revision

This diagram covers Endocrine Glands — Adrenaline and Thyroxine within Hormones & Behaviour for GCSE Biology. Topic 8: Hormones & Behaviour It is section 3 of 10 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.

Topic position

Section 3 of 10

Practice

15 questions

Recall

20 flashcards

🧬 Endocrine Glands — Adrenaline and Thyroxine

Keep building this topic

Read this section alongside the surrounding pages in Hormones & Behaviour. That gives you the full topic sequence instead of a single isolated revision point.

Adrenaline and Thyroxine: Two Hormones, Two Timescales How It Works: Adrenaline and the Fight-or-Flight Response The Story: The Emergency Broadcast Key Definitions

Practice Questions for Hormones & Behaviour

Which response does adrenaline prepare the body for?

A. Fight or flight
B. Rest and digest
C. Growth and repair
D. Cooling down

1 markfoundation

State two effects of adrenaline on the body during a fight-or-flight response.

2 marksstandard

Quick Recall Flashcards

What is adrenaline and what does it do?

Adrenaline is a hormone released by the adrenal glands (on top of the kidneys) during stress or danger. It prepares the body for 'fight or flight' — increasing heart rate and releasing glucose for energy.

Name three effects of adrenaline on the body.

1. Increases heart rate (more blood to muscles). 2. Raises blood glucose levels (provides energy). 3. Dilates pupils and increases breathing rate (heightens alertness).

15 questions on Hormones & Behaviour — practise free

Instant marking, adaptive difficulty, and 20 spaced repetition flashcards. Free until your GCSEs.

Try PrepWise Free

Adrenaline and Thyroxine: Two Hormones, Two Timescales

How It Works: Adrenaline and the Fight-or-Flight Response