10 Questions
What is the role of the parathyroid hormone in the body?
Controlling calcium and phosphate levels in the blood
What happens if three out of the four parathyroid glands are removed?
Transient hypoparathyroidism
Why is complete removal of parathyroid tissue considered lethal?
Essential for life due to its role in maintaining calcium levels
Where are the parathyroid glands located in the body?
Immediately behind the thyroid gland
Which hormone regulates calcium levels along with parathyroid hormone?
Calcitonin
What is the main function of calcium that circulates in the blood?
Supports muscle contraction
Why is removal of half the parathyroid glands usually well-tolerated?
Remaining tissue can hypertrophy to compensate
What percentage of calcium is typically stored in the bone?
~99%
Which organ is involved in excreting phosphate from the body under the influence of parathyroid hormone?
Kidney
Which form of vitamin D metabolites helps regulate calcium levels?
1,25dihydroxycholecalceferol
Test your knowledge about the level of calcium in the body and its different forms. Learn about calcium's presence in plasma, binding to proteins, and its diffusibility through capillary membranes.
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