Western Maricopa Education Center (West-MEC) RMA-AMT Module 1 Practice Test

Maintaining stability through physiological processes is homeostasis. It’s the body's ability to keep internal conditions, like temperature, pH, and glucose, within tight limits despite changes outside or inside. This relies on sensors (receptors) that detect deviations, a control center that compares what is happening to a set point, and effectors that respond to restore balance. The whole system often works via negative feedback, where the response diminishes the initial change—for example, if you get too warm, you sweat and the body cools down; if you’re cold, you shiver to generate heat. Anatomy is the study of body structure, physiology is the study of how those structures function, and a control center is a part of the regulatory pathway, not the overall process itself.