ENDOCRINE ORGANS AND RESPIRATORY SYSTEM
ENDOCRINE ORGANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Target organ effects inhibit further hormone release.
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As hormone levels rise, hormone release is promoted.
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As hormone levels decrease, hormone release is promoted
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As hormone levels decrease, hormone release is inhibited.
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Detailed explanation-1: -As hormone levels decrease, further hormone release is inhibited.
Detailed explanation-2: -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-3: -Another example of negative feedback is the regulation of the blood calcium level. The parathyroid glands secrete parathyroid hormone, which regulates the level of calcium in the blood. If calcium decreases, the parathyroid glands sense the decrease and secrete more parathyroid hormone.
Detailed explanation-4: -Which of the following is an example of a negative feedback mechanism in regards to hormone regulation?-ADH is released from the pituitary causing water to be reabsorbed in the kidneys.
Detailed explanation-5: -ACTH activates the adrenal glands to release cortisol, which induces metabolic effects. Cortisol also acts back on the hypothalamus and pituitary gland by negative feedback.