Single Answer MCQ
Q-00040113
In a reflex action, what pathway does the signal take?
1
Receptor → Motor neuron → Sensory neuron
2
Sensory neuron → Spinal cord → Motor neuron
3
Motor neuron → Brain → Sensory neuron
4
Spinal cord → Brain → Receptor
Answer and Solution
Answer
B. Sensory neuron → Spinal cord → Motor neuron
Solution:
In a reflex action, the signal travels from the sensory neuron to the spinal cord and then to the motor neuron, allowing quick responses to stimuli without the delay of involving the brain.
Watch Video Solution