Which of the following is the correct sequence of the components in a reflex arc ? - (1) Muscle $\rightarrow$ Motor neuron $\rightarrow$ Receptor $\rightarrow$ Sensory neuron $ \rightarrow$ Spinal cord - (2) Muscle $\rightarrow$ Sensory neuron $\rightarrow$ Spinal cord $\rightarrow$ Motor neuron $\rightarrow$ Receptor - (3) Receptor $\rightarrow$ Sensory neuron $\rightarrow$ Spinal cord $\rightarrow$ Motor neuron $\rightarrow$ Muscle - (4) Receptor $\rightarrow$ Motor neuron $\rightarrow$ Spinal cord $\rightarrow$ Sensory neuron $\rightarrow$ Muscle

Asked in School Lecturer (School Edu.) 2018 2 2018 · Topic: Nervous System (Reflex Actions: Components and Types)

1. Muscle $\rightarrow$ Motor neuron $\rightar‐ row$ Receptor $\rightarrow$ Sensory neuron $ \rightarrow$ Spinal cord
2. Muscle $\rightarrow$ Sensory neuron $\righ‐ tarrow$ Spinal cord $\rightarrow$ Motor neuron $\rightarrow$ Receptor
3. Receptor $\rightarrow$ Sensory neuron $\righ‐ tarrow$ Spinal cord $\rightarrow$ Motor neuron $\rightarrow$ Muscle
4. Receptor $\rightarrow$ Motor neuron $\righ‐ tarrow$ Spinal cord $\rightarrow$ Sensory neuron $\rightarrow$ Muscle

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