Question

Simple two neuron reflex arc involves

• A. Sensory neuron
• B. Spinal cord
• C. Effector neuron
• D. All of the above

Answer 1

The correct option is D All of the above

Reflex arc transmits the sensory information from receptor to effector via the spinal cord. It consists of the sensory receptor, afferent neuron, centre, efferent neuron and effector organ. The afferent/sensory neurons transmit the sensory information from sensory receptors to the spinal cord (sensory pathway). The interneurons of spinal cord integrate the incoming information and signal is relayed to motor/efferent neurons. The motor pathway transmits the signal from motor neurons to the effector organs (muscles and glands etc).