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Q. Given below are different components of reflex arc.
I. Effector neuron
II. Dorsal nerve root
III. CNS
IV. Afferent neuron
V. Sensory receptor
VI. Effector organ
Arrange these in correct order of action potential that follows a sensory receptor stimulation.

Neural Control and Coordination

Solution:

The correct pathway of reflex arc is
Sensory receptor $\rightarrow$ Afferent neuron $\rightarrow$ Dorsal nerve root $\rightarrow CNS \rightarrow$ Effector neuron $\rightarrow$ Effector organs.