This comparison covers Nervous System vs Endocrine System as Coordination Centres within Homeostasis Intro for GCSE Biology. Topic 1: Homeostasis Intro It is section 6 of 13 in this topic. Use this comparison to connect the idea to the wider topic before moving on to questions and flashcards.
⚖️ Nervous System vs Endocrine System as Coordination Centres
The body uses two types of coordination centre, often working together. Understanding the differences helps you answer questions about why one system is used rather than the other for a particular homeostatic response.
Figure 2: The two coordination systems compared.
| Feature | Nervous System | Endocrine System |
|---|---|---|
| Signal type | Electrical impulses | Chemical hormones in blood |
| Speed | Very fast (milliseconds) | Slower (seconds to minutes) |
| Duration of response | Short-lived | Long-lasting |
| Target | Specific (target organ/muscle) | Widespread (all cells with receptors) |
| Pathway | Nerve fibres (neurones) | Bloodstream |
| Homeostasis example | Shivering reflex (temperature) | Insulin/glucagon (blood glucose) |
Practice questions for Homeostasis Intro
What is homeostasis?
State the definition of homeostasis and give two examples of what the body regulates.
Quick recall flashcards
What is an effector?
An effector carries out the response to restore normal conditions. Effectors are muscles (contract) or glands (secrete hormones or other substances).
What is homeostasis?
The maintenance of a stable internal environment despite changes in external conditions. The body regulates temperature, blood glucose, and water balance.