Negative Feedback Definition Anatomy

Negative feedback is a reaction that causes a decrease in function. In order to maintain a stable internal environment or homeostasis the body uses negative and positive feedback.

Homeostasis Physio Scientist Cindy

A good example of a positive feedback system is child birth.

Negative feedback definition anatomy. In negative feedback the body works to correct a deviation from a set point it tries to get back to normal. In the context of anatomy and physiology a negative feedback system operates through three interrelated components. So the feedback tends to stabilize the system.

Milk will be produced until babies done. Often it causes the output of a system to be lessened. Examples include body temperature blood pressure blood oxygen levels and thirst sensation.

A sensor an integrator and an effector. Negative feedback definition negative feedback is a type of regulation in biological systems in which the end product of a process in turn reduces the stimulus negative feedback is a type of regulation in biological systems in which the end product of a process in turn reduces the stimulus of that same process. Negative feedback or balancing feedback occurs when some function of the output of a system process or mechanism is fed back in a manner that tends to reduce the fluctuations in the output whether caused by changes in the input or by other disturbances.

With negative feedback the output reduces the original effect of the stimulus. This can be referred to as homeostatis as in biology or equilibrium as in mechanics. It occurs in response to some kind of stimulus.

A critical derogatory or otherwise negative response from one person to what another person has communicated. The sensor detects a change in a certain physiological variable and communicates this change to the integrator which processes the information and decides what sort of action if any should be taken. In a positive feedback system the output enhances the original stimulus.

1 in physiology a decrease in function in response to a stimulus. For example the secretion of follicle stimulating hormone decreases as the amount of circulating estrogen increases. Examples of positive feedback blood clot formation amplifies chemicals in the clot promote further clotting until its sealed milk production as long as baby is nursing.

Negative Feedback