Which a stimulus triggers a response that opposes the stimulus?
Which a stimulus triggers a response that opposes the stimulus?
Called negative feedback, is the process in which a stimulus produces a response that opposes the original stimulus.
When initial stimulus produces response that increases the original stimulus is?
positive feedback
positive feedback a stimulus produces a response that amplifies or enhances the original stimulus.
When a response results in an amplification of the original stimulus this is called?
Systematic response. Describe positive feedback system. An initial stimulus produces a response that exaggerates/amplifies or enhances/reinforces the effects of a stimulus.
What type of feedback mechanism causes something to happen and that event exaggerates the original event?
Positive feedback (exacerbating feedback, self-reinforcing feedback) is a process that occurs in a feedback loop which exacerbates the effects of a small disturbance. That is, the effects of a perturbation on a system include an increase in the magnitude of the perturbation.
When the initial stimulus produces a response?
When the initial stimulus produces a response that exaggerates the stimulus produces a response that exaggerates the stimulus, the mechanism is called: Positive feedback. When a person is lying down face up in the anatomical position, the individual is said to be: Supine.
When body temperature rises a center in the brain initiates physiological changes to decrease?
When body temperature rises, a center in the brain initiates physiological changes to decrease the body temperature. this is an example of negative feedback.
What stops a positive feedback loop?
In these cases, the positive feedback loop always ends with counter-signaling that suppresses the original stimulus. A good example of positive feedback involves the amplification of labor contractions. The contractions are initiated as the baby moves into position, stretching the cervix beyond its normal position.
Which type of feedback continues the original stimulus?
Positive feedback mechanisms
Positive feedback mechanisms control self-perpetuating events that can be out of control and do not require continuous adjustment. In positive feedback mechanisms, the original stimulus is promoted rather than negated. Positive feedback increases the deviation from an ideal normal value.
What is the set point normal level for body temperature?
98.6°F
For example, the set point for normal human body temperature is approximately 37°C (98.6°F). Physiological parameters, such as body temperature and blood pressure, tend to fluctuate within a normal range a few degrees above and below that point.
What happens when the hypothalamus is no longer stimulated?
Widening of surface blood vessels (vasodilation) increases the flow of heat to the skin and get flushed. Sweat glands release water (sweat) and evaporation cools the skin. These effects cause body temperature to decrease. When it returns to normal, the hypothalamus is no longer stimulated, and these effects cease.
How is homeostasis related to the function of feedback loops?
Remember that homeostasis is the maintenance of a relatively stable internal environment. When a stimulus, or change in the environment, is present, feedback loops respond to keep systems functioning near a set point, or ideal level. Feedback Feedback is a situation when the output or response of a loop impacts or influences the input or stimulus.
When does positive feedback accelerate the blood clotting process?
when an initial stimulus produces a response that exaggerates or enhances the change in the original conditions, rather than opposing it. positive feedback accelerates the clotting process until a blood clot forms and stops bleeding. disease. the process in which physiological systems are continually adapting and adjusting to changing conditions.
Which is an example of a negative feedback cell?
The effector, is a cell or organ that responds to the commands of the control center and whose activity either opposes or enhances the stimulus. Term negative feedback