The three main components of a homeostatic control system are:

• Receptor (Sensor): This component detects changes or stimuli in the internal or external environment. It senses deviations from a set point and sends this information to the control center. For example, temperature receptors in the skin detect changes in body temperature

• Control Center (Integrator): Usually a part of the brain such as the hypothalamus, the control center receives information from the receptor, processes it, and determines the appropriate response. It compares the incoming data to the set point or normal range and sends signals to the effector to correct any deviations

• Effector: The effector carries out the response directed by the control center to bring the variable back to its normal range. Effectors can be muscles, glands, or organs that act to reverse the change, such as sweat glands producing sweat to lower body temperature or muscles generating heat to raise it

Together, these components form a feedback loop that maintains stable internal conditions essential for homeostasis, typically through negative feedback mechanisms that counteract changes from the set point