NURSING EXAM QUESTIONS
HUMAN ANATOMY PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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positive feedback
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negative feedback
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thermostats
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cellular demands
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Detailed explanation-1: -Hormone production and release are primarily controlled by negative feedback. In negative feedback systems, a stimulus elicits the release of a substance; once the substance reaches a certain level, it sends a signal that stops further release of the substance.
Detailed explanation-2: -An important example of a negative feedback loop is seen in control of thyroid hormone secretion. The thyroid hormones thyroxine and triiodothyronine ("T4 and T3") are synthesized and secreted by thyroid glands and affect metabolism throughout the body.
Detailed explanation-3: -Negative feedback keeps the concentration of a hormone within a narrow range. But oxytocin regulation involve positive feedback loops. The release of oxytocin feeds back to increase more oxytocin production and release.