18 Questions
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.
False
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.
False
Positive feedback systems aim to maintain stability by reversing a change.
False
Negative feedback is a type of homeostatic control system that maintains the variable within an abnormal range.
False
The release of insulin by the pancreas in response to decreased blood glucose levels is an example of homeostatic regulation through negative feedback.
True
In a negative feedback system, the resulting action is in the same direction as the stimulus.
False
Negative feedback controls only a few processes in the body.
False
If the stimulus increases in a negative feedback system, the control system is activated to cause an increase in the stimulus.
False
Temperature regulation is an example of a homeostatic system regulated by positive feedback.
False
When the body temperature drops, nerve impulses in blood vessels in the skin are activated to increase the inside opening of the vessels.
False
Positive feedback loop is the most common type of feedback system in the body.
False
Negative feedback loop results in the original stimulus being intensified.
False
Homeostatic systems that need frequent adjustment typically use positive feedback loops.
False
Feedback loops involve a stimulus, detection of stimulus by a receptor, and initiation of change through effectors.
True
Positive feedback loops are commonly seen in normal childbirth.
True
Negative feedback loop is used for conditions that do not require frequent adjustment.
False
Test your knowledge on negative feedback control systems, a type of homeostatic control system that helps maintain variables within a normal range by producing actions in the opposite direction of the stimulus. Learn how negative feedback controls most processes in the body and keeps variables around their set points.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free