This key facts covers Key Facts within Reflex Arc for GCSE Biology. Topic 3: Reflex Arc It is section 2 of 15 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 15
Practice
13 questions
Recall
12 flashcards
Key Facts
- A reflex is a quick and involuntary movement in response to a stimulus.
- The brain is bypassed in the case of reflexes, allowing for faster reaction times.
- Reflexes involve a reflex arc pathway, which includes sensory receptors, nerve pathways, and effector muscles.
Keep building this topic
Read this section alongside the surrounding pages in Reflex Arc. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Reflex Arc
Which word best describes a reflex action?
State the correct order of the reflex arc pathway from stimulus to response. Name each component.
Quick Recall Flashcards
What is the reflex arc pathway?
Stimulus → Receptor → Sensory neurone → Relay neurone (in spinal cord) → Motor neurone → Effector → Response.
What is a reflex action?
A reflex is a rapid, automatic response to a stimulus that does not involve conscious thought. Reflexes protect the body from harm.
13 questions on Reflex Arc — practise free
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