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Dictionary » F » Feedback mechanism Feedback mechanismDefinition noun (1) A loop system in which the system responds to perturbation either in the same direction (positive feedback) or in the opposite direction (negative feedback). (2) A process in which the level of one substance influences the level of another substance. (3) A mechanism or a signal that tends to initiate (or accelerate) or to inhibit (or slow down) a process.
An example of positive feedback loop is the onset of contractions in childbirth. When contraction begins, the hormone oxytocin is released into the body to stimulate further contractions. As for the negative feedback loop, an example is the regulation of blood glucose levels. If blood glucose levels continue to rise it may result in diabetes. In fact, there are many biologic processes that use negative feedback to maintain homeostasis or dynamic equilibrium.
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Results from our forumHuman Reproduction System... into the corpus luteum and also for ovulation to occur. The negative feedback mechanism whereby the secretion of FSH and LH is halted occurs because the estrogen and progesterone ...
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Alternative Theories to EvolutionNo... an actual built-in feedback mechanism by which environmental factors can cause a chemical response resulting in an alteration of DNA.
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Introns !!! what is yr OWN theory to their job !!... a form of gene regulation. The cell must have some sort of positive feedback mechanism where it recognizes that it needs the spliced out sequence and it stops production ...
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Logic/emotions/Self-preservation... it can respond to such self-preservation aspect. I see here a somewhat feedback mechanism that will maintain balance afterall that we must be already reaching beyond the threshold ...
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Global warming, an irreversible cycle?... involved, that we don't know about. There are probably many positive feedback loops involved in the production of greenhouse gases. But there ... is degraded by a certain system (kinda wishing I'd asked about the mechanism now... Sorry). I think Mother Nature has got things firmly under ...
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