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Questions and Answers
The withdrawal reflex in response to injury is an example of homeostatic regulation through positive feedback.
The withdrawal reflex in response to injury is an example of homeostatic regulation through positive feedback.
False
Changing breathing rate in response to decreased carbon dioxide levels is an example of positive feedback.
Changing breathing rate in response to decreased carbon dioxide levels is an example of positive feedback.
False
Regulating heart rate and blood pressure during exercise is an example of homeostatic regulation through negative feedback.
Regulating heart rate and blood pressure during exercise is an example of homeostatic regulation through negative feedback.
True
Parathyroid hormone release in response to increased calcium levels is an example of positive feedback.
Parathyroid hormone release in response to increased calcium levels is an example of positive feedback.
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Positive feedback systems aim to maintain stability by reversing a change.
Positive feedback systems aim to maintain stability by reversing a change.
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Negative feedback is a type of homeostatic control system that maintains the variable within an abnormal range.
Negative feedback is a type of homeostatic control system that maintains the variable within an abnormal range.
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The release of insulin by the pancreas in response to decreased blood glucose levels is an example of homeostatic regulation through negative feedback.
The release of insulin by the pancreas in response to decreased blood glucose levels is an example of homeostatic regulation through negative feedback.
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In a negative feedback system, the resulting action is in the same direction as the stimulus.
In a negative feedback system, the resulting action is in the same direction as the stimulus.
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Negative feedback controls only a few processes in the body.
Negative feedback controls only a few processes in the body.
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If the stimulus increases in a negative feedback system, the control system is activated to cause an increase in the stimulus.
If the stimulus increases in a negative feedback system, the control system is activated to cause an increase in the stimulus.
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Temperature regulation is an example of a homeostatic system regulated by positive feedback.
Temperature regulation is an example of a homeostatic system regulated by positive feedback.
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When the body temperature drops, nerve impulses in blood vessels in the skin are activated to increase the inside opening of the vessels.
When the body temperature drops, nerve impulses in blood vessels in the skin are activated to increase the inside opening of the vessels.
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Positive feedback loop is the most common type of feedback system in the body.
Positive feedback loop is the most common type of feedback system in the body.
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Negative feedback loop results in the original stimulus being intensified.
Negative feedback loop results in the original stimulus being intensified.
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Homeostatic systems that need frequent adjustment typically use positive feedback loops.
Homeostatic systems that need frequent adjustment typically use positive feedback loops.
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Feedback loops involve a stimulus, detection of stimulus by a receptor, and initiation of change through effectors.
Feedback loops involve a stimulus, detection of stimulus by a receptor, and initiation of change through effectors.
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Positive feedback loops are commonly seen in normal childbirth.
Positive feedback loops are commonly seen in normal childbirth.
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Negative feedback loop is used for conditions that do not require frequent adjustment.
Negative feedback loop is used for conditions that do not require frequent adjustment.
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