$C:\Users\AEPL\Downloads\20.png$ Select the incorrect option regarding the given figure.

The labelled part ‘P’ carries impulses from CNS to effector

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The labelled part ‘Q’ serves as a connecting link between sensory and motor neurons

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The nerve endings of ‘Q’ transmits impulses towards sensory neurons

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The labelled part ‘I’ carry impulses from the sense organs towards the CNS

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Solution

The correct option is C The nerve endings of ‘Q’ transmits impulses towards sensory neurons
The given figure illustrates a reflex arc, where I is a sensory neuron, P is a motor neuron and Q is a relay neuron. The relay neuron (here, Q) acts as a link between sensory neuron and motor neuron. It analyses and interprets the sensory impulse and then set up an appropriate motor impulse towards the motor neuron.

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