Muscles Sensory neuron Motor neuron Spinal cord

B. Receptors Motor neuron Spinal cord Sensory neuron Muscle

C. Receptors Spinal cord Sensory neuron Motor neuron Muscle

D. Receptors Sensory neuron Spinal cord Motor neuron Muscle

The path through which signals are transmitted from a receptor to a muscle or a gland is called reflex arc.

The correct sequence of the components of a reflex arc is –

Receptors Sensory neuron Spinal cord Motor neuron Muscle

Stimulus received by the sensory receptors. Then sensory neuron or nerve carries signals from receptors to spinal cord. Impulses travels from the spinal cord to the motor neuron. The end of motor neuron connects effector organ or muscles which produce response.