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9 Cards in this Set
- Front
- Back
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What hormones regulate blood calcium level and are examples of homeostasis?
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-parathyroid hormone(PTH)
-calcitonin |
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What produces parathyroid hormones(PTH)?
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It is produced by the parathyroid glands in the neck.
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Why is parathyroid hormones secreted(PTH)?
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It is secreted when blood Ca+2 level is low.
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When the parathyroid hormone is secreted, what does it cause?
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-causes bone breakdown and release of Ca from the bone into the blood
-activates Vitamin D |
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What is the point of activating Vitamin D when Ca+2 levels are low?
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It increases intestinal absorption of Ca.
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What produces calcitonin?
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It is produced by the thyroid gland in the neck.
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When is calcitonin secreted?
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It is secreted when blood Ca level is high.
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What does the secretion of calcitonin cause?
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It causes a decreased breakdown of bone matrix so blood Ca level drops.
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Symbol for Calcium
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Ca
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