Reflex
Involuntary response to a stimulus.
Rapid, stereotyped, often spinal-cord-mediated response to a sensory input, such as the gastrocolic reflex and swallowing reflex.
How one textbook covers it
Advanced Nutrition and Human Metabolism, 8th ed. (Gropper) — Glossary
Rapid, stereotyped, often spinal-cord-mediated response to a sensory input, such as the gastrocolic reflex and swallowing reflex.