Reflex Action
Which is correct order in a simple reflex arc?
Select the correct option:
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About This Question
- Subject
- biology
- Chapter
- neural control and coordination
- Topic
- reflex action
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Receptor -> Sensory nerve -> CNS -> Motor nerve -> Effector
- Reflex Arc Components: A reflex action is an involuntary, rapid response to a stimulus.
- Sequence of Flow:
- Receptor: Detects the stimulus.
- Sensory (Afferent) Neuron: Carries the signal toward the CNS.
- CNS (Spinal Cord/Brain): Processes the information.
- Motor (Efferent) Neuron: Carries the response signal away from the CNS.
- Effector (Muscle/Gland): Executes the response.
- Conclusion: Option 1 correctly describes the pathway.
This easy difficulty biology question is from the chapter neural control and coordination, covering the topic of reflex action. It appeared in the 2025 exam.
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