Question

One of the following gives the correct sequence of the components in a reflex arc. This is:​

• A. Receptors → Motor neuron → Spinal cord → Sensory neuron → Muscle​
• B. Receptors → Spinal cord → Sensory neuron → Motor neuron → Muscle​
• C. Receptors → Muscle → Sensory neuron → Motor neuron → Spinal cord​
• D. Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle ​

Answer 1

The correct option is D Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle ​

Correct Option: (d)​ Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle.​ ​

Reflex arc is the path followed by the impulse during a reflex action.​

• Impulse is generated at the receptor and transmitted to the sensory neuron that carries the impulse to the spinal cord.​
• Spinal cord decides the action for the stimulus and transmits the information in the form of the impulse to the motor neuron that carries it to the muscle to take action.​ ​