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Question

The sequence of the components of a reflex arc is

ReceptorsSpinal cordSensory neuronMotor neuronMuscles



A

True

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B

False
 

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Solution

The correct option is B

False
 


The path taken by a nerve impulse during a reflex action is known as the reflex arc. The correct order is Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscles. Reflex arc starts with a stimulus. The stimulus initiates an impulse in a sensory neuron. The sensory neuron carries the impulse to the spinal cord. The spinal cord carries the impulse to appropriate motor neuron. The motor neuron then sends the impulse to either the effector muscle or gland.


Biology

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