The usual flow of information in a reflex arc is
A) cranial nerve, connector neuron, spinal nerve
B) sensory neuron, interneuron, motor neuron
C) effector cell, interneuron, sensory neuron
D) sensory neuron, motor neuron, reflex neuron

Question

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The usual flow of information in a reflex arc starts with a sensory neuron that detects a stimulus. This information is then relayed to an interneuron (also known as a connector neuron) in the spinal cord or brain, which processes the information and decides the appropriate response. Finally, the interneuron sends a signal to a motor neuron, which activates the muscles or glands to respond to the initial stimulus. This pathway (sensory neuron to interneuron to motor neuron) is essential for quick reflex actions that do not require direct involvement of the brain.

The Usual Flow of Information in a Reflex Arc Is