A student asks the professor how a faulty negative-feedback mechanism results in a hormonal imbalance. What response by the professor is best?
A)Hormones are not synthesized in response to cellular and tissue activities.
B)Decreased hormonal secretion is a response to rising hormone levels.
C)Too little hormone production is initiated.
D)Excessive hormone production results from a failure to turn off the system.

Question

Quizplus · Accepted Answer

Negative-feedback systems are important in maintaining hormones within physiologic ranges. The lack of negative-feedback inhibition on hormonal release often results in pathologic conditions. Excessive hormone production, which is the result of the failure to turn off the system in response to changes in chemical, endocrine, or neurologic factors, can cause various hormonal imbalances and related conditions. Hormones are synthesized in response to cellular and tissue activities, but not appropriately.

A Student Asks the Professor How a Faulty Negative-Feedback Mechanism