Which sequence correctly shows the pathway of a nerve impulse along a reflex arc?
receptor→sensory neurone→relay neurone→motor neurone→effector\text{receptor} \rightarrow \text{sensory neurone} \rightarrow \text{relay neurone} \rightarrow \text{motor neurone} \rightarrow \text{effector}receptor→sensory neurone→relay neurone→motor neurone→effector
receptor→motor neurone→relay neurone→sensory neurone→effector\text{receptor} \rightarrow \text{motor neurone} \rightarrow \text{relay neurone} \rightarrow \text{sensory neurone} \rightarrow \text{effector}receptor→motor neurone→relay neurone→sensory neurone→effector
effector→sensory neurone→relay neurone→motor neurone→receptor\text{effector} \rightarrow \text{sensory neurone} \rightarrow \text{relay neurone} \rightarrow \text{motor neurone} \rightarrow \text{receptor}effector→sensory neurone→relay neurone→motor neurone→receptor
effector→motor neurone→relay neurone→sensory neurone→receptor\text{effector} \rightarrow \text{motor neurone} \rightarrow \text{relay neurone} \rightarrow \text{sensory neurone} \rightarrow \text{receptor}effector→motor neurone→relay neurone→sensory neurone→receptor
Practise OCR GCSE Biology Coordination and control – the nervous system with exam-style questions for Foundation and Higher tier. 79 questions, matched to the OCR GCSE Biology (J247) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.