Blood calcium level is regulated in part by , a hormone secreted by the thyroid gland when the blood calcium level rises.
Question
Blood calcium level is regulated in part by , a hormone secreted by the thyroid gland when the blood calcium level rises.
Solution
The hormone that regulates blood calcium level, secreted by the thyroid gland when the blood calcium level rises, is called Calcitonin. Here are the steps of how it works:
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When the blood calcium level rises above the normal range, the thyroid gland detects this change.
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In response, the thyroid gland secretes the hormone calcitonin.
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Calcitonin has several effects on the body, all of which work together to decrease blood calcium levels.
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It inhibits the activity of osteoclasts, cells that break down bone to release calcium into the blood.
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It also increases the activity of osteoblasts, cells that build bone, thereby storing more calcium in the bones.
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In addition, calcitonin reduces the reabsorption of calcium by the kidneys, leading to more calcium being excreted in the urine.
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As a result of these actions, the level of calcium in the blood decreases back to the normal range.
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When the blood calcium level is back within the normal range, the thyroid gland reduces the secretion of calcitonin.
This is a continuous and dynamic process that helps to maintain the balance of calcium in the body.
Similar Questions
Choose the hormone that increases blood calcium level:Select one:ThyroxineTriiodothyronineParathyroid hormoneCalcitoninAntidiuretic hormone
In response to high blood calcium levels, the thyroid gland releases a hormone that works to lower blood calcium. This is an example of which endocrine control method?Multiple ChoiceChanging plasma levels of a substance stimulate a gland directly.The nervous system stimulates a gland directly.The hypothalamus and pituitary stimulate a peripheral endocrine gland.
What process regulates calcium levels in the blood?Multiple choice question.Blood clottingBone recyclingThyroid gland activityBone remodeling
Which hormone lowers blood calcium level?
The opposing roles of the thyroid and parathyroid hormones maintain the balance of calcium and phosphate ions in the blood. What will happen if the parathyroid gland develops a defect that prevents PTH secretion?Multiple ChoiceThe amount of calcium ions in the blood will increase and the amount of phosphate ions will decrease.The amount of calcium ions and phosphate ions in the blood will increase.The amount of calcium ions and phosphate ions in the blood will decrease.The amount of calcium ions in the blood will decrease and the amount of phosphate ions will increase.
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