Question at position 24 Which hormone is released from the thyroid gland in response to elevated blood calcium levels?AldosteroneParathyroid hormone (PTH)InsulinThyroxineCalcitonin

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Question at position 24 asks which hormone is released from the thyroid gland in response to elevated blood calcium levels. 
Option 1: Aldosterone. This hormone is produced by the adrenal cortex and is primarily involved in regulating sodium and potassium balance and blood pressure, not calcium homeostasis, so it does not respond to high calcium.
Option 2: Parathyroid hormone (PTH). PTH is secreted by the parathyroid glands when calcium levels are low; it acts to raise calcium but it is not released by the thyroid, so this option is incorrect in the context of thyroid-derived calcium regulation.
Option 3: Insulin. Insulin is produced by the beta cells of the pancreas and governs glucose metabolism. It has no direct role in calcium regulation via the thyroid, making this choice incorrect.
Option 4: Thyroxine. Thyroxine (T4) is a thyroid hormone involved in metabolic rate and energy use, not in calcium sensing or release from calcium-regulating tissues, so this is not the hormone that responds to elevated calcium.
Option 5: Calcitonin. Calcitonin is produced by the parafollicular cells (C cells) of the thyroid gland and is released in response to high blood calcium levels; it helps to lower calcium by inhibiting osteoclast activity and reducing calcium reabsorption in the kidneys, aligning with calcium homeostasis.
In summary, understanding the roles: the thyroid gland houses C cells that secrete calcitonin in response to hypercalcemia, whereas the other hormones listed originate from different glands and have distinct primary functions unrelated to thyroid-mediated calcium sensing. The incorrect options either originate from other glands (adrenal, parathyroid, pancreas) or have metabolic roles unrelated to calcium regulation in the thyroid context, which explains why they do not fit the question’s premise.

Question at position 24 Which hormone is released from the thyroid gland in response to elevated blood calcium levels?AldosteroneParathyroid hormone (PTH)InsulinThyroxineCalcitonin

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Question at position 24 Which hormone is released from the thyroid gland in response to elevated blood calcium levels?AldosteroneParathyroid hormone (PTH)InsulinThyroxineCalcitonin

View Explanation

Log in for full answers

Similar Questions

The parathyroid gland produces para/thormone, which regulates body calcium blood levels and prevents:

The name of the hormone that helps to maintain the level of calcium in the blood is:

Question at position 2 The hormone calcitonin functions to:decrease the rate of calcium absorptionstimulate osteoclast activitydecrease the level of calcium ion in the blooddecrease the rate of calcium excretionstimulate osteoblasts and inhibit osteoclasts

Question at position 2 Elevated levels of calcium ion in the blood would stimulate:growth hormonetestosteronecalcitoninthyroid hormone

Question at position 1 During a long illness, Brandon's plasma calcium levels decrease. Which hormone would you expect to see in higher levels than normal in his blood?CalcitoninThyroxineGrowth hormoneInsulinParathyroid hormone

Blank ______ is a hormone produced by cells found in the thyroid gland that functions to lower blood calcium levels.

While the Blank ______ system is responsible for bringing calcium into the body, the Blank ______ system is responsible for eliminating excess calcium.

When blood calcium levels are low, Blank ______ calcium is excreted in the urine.

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While the Blank system is responsible for bringing calcium into the body, the Blank system is responsible for eliminating excess calcium.