Answer:
a reflex arc
Step-by-step explanation:
Reflex arcs are automatic responses to stimuli that occur without conscious thought or control. They are mediated by the reflex arc, which involves the sensory neuron, interneuron, and motor neuron. While the brain is involved in the reflex arc, the response occurs before conscious thought or control, making it an automatic response that does not involve brain interaction.
On the other hand, the autonomic and somatic nervous systems are under conscious control and involve brain interaction. The parasympathetic response is a specific branch of the autonomic nervous system that regulates the body's internal organs during rest and digestion.