What is negative feedback in homeostasis?
negative feedback in homeostasis describes the process by which body systems maintain their normal environment or states. Homeostasis describes the overall regulation of its internal body systems. When there are changes in a state such as body temperature, negative feedback starts to return the temperature back to its normal point. For example, if the body becomes too hot, sweating occurs to cool down. If the body is too studying, the trembling is one reaction that helps it warm up.
A typical or ideal body system is called a set point, but negative feedback in homeostasis cannot maintain systems exactly at a set point. Instead, negative feedback in homeostasis affects body temperature, for example within what is called a normal range of values. The value of the system that changes as a result of different circumstances is called variable.
Often there are three parts of the negative feedback response that is called a receptor, a control center effectsteed. The receptor is part of the feedback response that simply detects changes in the variable value. This information is transmitted to the control center, which monitors changes and starts negative feedback when changes fall too far beyond the normal range of values. If this happens, the control center signals the effector to take action to help return the system to the set point.
One examples of negative feedback in homeostasis is the way the body regulates blood pressure. In this case, the receptors are sensitive to the pressure located near the heart and head. These receptors send nerve pulses to a part of the brain, here a control center that regulates heart rate. The control center then sends the signals to the effector, which in this case is a heart. In response to brain reports, the heart accelerates or slows down to regulate blood pressure.
concept of negative feedbackIt is also used in psychology in homeostasis. In psychology, this can be a useful way to understand basic disks and motivations. For example, a person who has been deprived of food usually becomes hunger as time goes by. The feeling of hunger is a negative feedback mechanism that attempts to return the body to its nutritional file. When this person eats, the mechanism was successful and the feeling of hunger dispersed.