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Questions and Answers
Which gland is responsible for controlling the calcium balance in the blood?
Which gland is responsible for controlling the calcium balance in the blood?
- Adrenal gland
- Parathyroid gland (correct)
- Pituitary gland
- Thyroid gland
Where are the parathyroid glands located?
Where are the parathyroid glands located?
- On the adrenal gland
- On the pituitary gland
- On the pancreas
- On the thyroid gland (correct)
What triggers the release of parathormone?
What triggers the release of parathormone?
- Low blood glucose levels
- High blood calcium levels
- Low blood calcium levels (correct)
- High blood glucose levels
What is the consequence of over secretion of parathormone?
What is the consequence of over secretion of parathormone?
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What happens when blood calcium levels are elevated?
What happens when blood calcium levels are elevated?
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What is the consequence of under secretion of parathormone?
What is the consequence of under secretion of parathormone?
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What can happen if hypocalcemia is left untreated?
What can happen if hypocalcemia is left untreated?
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Study Notes
Calcium Regulation in the Body
- The parathyroid glands are responsible for controlling calcium balance in the blood through the secretion of parathormone (PTH).
- These glands are typically located on the posterior surface of the thyroid gland, usually four in number.
Parathormone Release Triggers
- Parathormone release is triggered by low blood calcium levels, activating the parathyroid glands to release PTH into the bloodstream.
Consequences of Over Secretion of Parathormone
- Over secretion of parathormone can lead to hypercalcemia, characterized by elevated calcium levels in the blood. This can cause various health issues, including kidney stones and bone pain.
Effects of Elevated Blood Calcium Levels
- When blood calcium levels are elevated, it can lead to impaired nerve function, muscle weakness, and potential cardiovascular problems.
Consequences of Under Secretion of Parathormone
- Under secretion of parathormone results in hypoparathyroidism, which can lead to hypocalcemia, or low calcium levels in the blood.
Risks of Untreated Hypocalcemia
- Untreated hypocalcemia can cause severe complications such as muscle spasms, seizures, and cardiac arrhythmias, highlighting the importance of maintaining calcium balance.
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