Question

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

Options

• Receptors → Muscle → Sensory neuron → Motor neuron → Spinal cord

• Receptors → Motor neuron → Spinal cord → Sensory neuron → Muscle

• Receptors → Spinal cord → Sensory neuron → Motor neuron → Muscle

• Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle

Answer 1

Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle

Explanation:

The pathway taken by a nerve impulse in a reflex action is called reflex arc.

The correct sequence of the components in a reflex arc is given below:

Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle.