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Terms in this set (4)Negative feedback A type of regulation that responds to a change in conditions by initiating responses that will counteract the change. Maintains a steady state. Most common feedback mechanism in body Response reduces or shuts off original stimulus Examples in Physiology: more examples of negative feedback A good example of a negative feedback mechanism is a home thermostat (heating system). The thermostat contains the receptor (thermometer) and control center. If the heating system is set at 70 degrees Fahrenheit, the heat (effector) is turned on if the temperature drops below 70 degrees Fahrenheit. After the heater heats the house to 70 degrees Fahrenheit, it shuts off effectively maintaining the ideal temperature. The control of blood sugar (glucose) by insulin is another good example of a negative feedback mechanism. When blood sugar rises, receptors in the body sense a change . In turn, the control center (pancreas) secretes insulin into the blood effectively lowering blood sugar levels. Once blood sugar levels reach homeostasis, the pancreas stops releasing insulin. Positive Feedback Response enhances original stimulus until stimulus is shut off Positive Feedback examples more A positive feedback mechanism is the exact opposite of a negative feedback mechanism. With negative feedback, the output reduces the original effect of the stimulus. In a positive feedback system, the output enhances the original stimulus. A good
example of a positive feedback system is child birth. During labor, a hormone called oxytocin is released that intensifies and speeds up contractions. The increase in contractions causes more oxytocin to be released and the cycle goes on until the baby is born. The birth ends the release of oxytocin and ends the positive feedback mechanism. Just remember that positive feedback mechanisms enhance the original stimulus and negative feedback mechanisms inhibit it. Students also viewedCh 1 Module 2: Section 1.02-1.0431 terms alohilanib Homeostasis, Positive and Negative Feedback.6 terms Roey_Attar BIO 264 1.220 terms sophiejanee1 Chapter 1 Mastering Biology12 terms gabby_kiszka Sets found in the same folderMolecules of Life17 terms Suzs7897PLUS Skin55 terms DoctorWandoverTEACHER 01 Body Regions25 terms muskopf1 The Nervous System, The Nervous System70 terms Brandi_Gremaud9TEACHER Other sets by this creatorName and describe three major functions of the ner…4 terms demigreg Name and describe 3 types of arthritis.3 terms demigreg Name and describe 4 types of joint conditions caus…4 terms demigreg Describe a provide examples of the six types of sy…7 terms demigreg Other Quizlet setsPsychopharmacology Chapter 2&361 terms leah_wright5 Nervous System: Anatomy & Physiology24 terms sal_c_acePLUS Midterm67 terms wmhughes90 Cardiovascular Lecture assignment20 terms JesusLopez1909 What is the difference between a positive feedback mechanism and a negative feedback mechanism?The key difference between positive and negative feedback is their response to change: positive feedback amplifies change while negative feedback reduces change.
What is the difference between a positive feedback mechanism and a negative feedback mechanism quizlet?The difference between negative and positive feedback systems is that in negative feedback systems, the response reverses the original stimulus, but in positive feedback systems, the response enhances the original stimulus.
What is the difference between negative feedback and positive feedback?Positive feedback loops enhance or amplify changes; this tends to move a system away from its equilibrium state and make it more unstable. Negative feedbacks tend to dampen or buffer changes; this tends to hold a system to some equilibrium state making it more stable.
What is an example of a positive feedback mechanism and an example of a negative feedback mechanism select one of each?Examples of negative feedback mechanisms include temperature regulation and plant responses to water limitations. Positive feedback mechanisms amplify responses and processes in biological organisms. As a result of a positive feedback loop, the variable initiating the response is moved further away from the set point.
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What is the difference between a positive feedback mechanism in a negative feedback mechanism quizlet?
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