Elements of negative feedback mech.
1. Receptor: The first step in the negative feedback mechanism is the detection of a deviation from the set point by a receptor. Receptors can be cells, tissues, organs, or systems that detect changes in the body's internal environment.
2. Control center: The control center receives input from the receptor and compares it to the set point. If the input deviates from the set point, the control center initiates a response to bring the body back to homeostasis. The control center is typically located in the brain or another regulatory center in the body.
3. Effector: The effector is responsible for carrying out the response initiated by the control center. Effectors can be muscles, glands, organs, or systems that help to counteract the deviation from the set point and restore balance in the body.
4. Response: The response is the action taken by the effector to counteract the deviation from the set point and restore homeostasis. This could include the release of hormones, activation of muscle contractions, or other physiological processes that help bring the body back to its normal state.
5. Feedback loop: The negative feedback mechanism is a continuous loop where the response from the effector is fed back to the receptor and control center to ensure that the deviation from the set point is corrected and homeostasis is maintained. This feedback loop helps to regulate various physiological processes in the body and prevent potentially harmful deviations from the set point.