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Question
The given figure shows the pathway taken by a nerve impulse in a reflex action. Which part serves as a link between other neurons?
The given figure shows the pathway taken by a nerve impulse in a reflex action. Which part serves as a link between other neurons?
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Solution
The correct option is D S
Reflex reactions in humans are controlled by the reflex arc. When the safety of an organism demands a very quick response, the signals may be passed directly from a sensory neuron, via a relay neuron, to a motor neuron for instant action that is known as a reflex action. A reflex arc is the nerve pathway that makes such a fast and automatic response possible. The parts of the reflex arc are P- sensory neuron, Q- motor neuron, R- effector, S- center (where generally the sensory neuron synapses with the motor neuron).So the correct answer is option D.
Reflex reactions in humans are controlled by the reflex arc. When the safety of an organism demands a very quick response, the signals may be passed directly from a sensory neuron, via a relay neuron, to a motor neuron for instant action that is known as a reflex action. A reflex arc is the nerve pathway that makes such a fast and automatic response possible. The parts of the reflex arc are P- sensory neuron, Q- motor neuron, R- effector, S- center (where generally the sensory neuron synapses with the motor neuron).
So the correct answer is option D.
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