What is the primary function of a reflex arc?

What is the primary function of a reflex arc?

Step 1: Understand what a reflex arc is. A reflex arc is a pathway that the body uses to respond to certain stimuli quickly.
Step 2: Identify the components of a reflex arc. It includes a sensory neuron, an interneuron, and a motor neuron.
Step 3: Recognize the role of the sensory neuron. It detects a stimulus (like touching something hot) and sends a signal to the spinal cord.
Step 4: Understand the role of the interneuron. It processes the signal and sends a response to the motor neuron.
Step 5: Know the role of the motor neuron. It carries the response signal to the muscles to make them react (like pulling your hand away).
Step 6: Conclude that the primary function of a reflex arc is to allow the body to react quickly to stimuli without thinking about it.

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