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PTH is a...

PTH is a

A

hypercalcemic hormone

B

hypocalcemic hormone

C

endocalcemic hormone

D

exocalcemic hormone

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Identify PTH**: PTH stands for Parathyroid Hormone. It is produced by the parathyroid glands located in the neck. 2. **Classify PTH**: PTH is classified as a hypercalcemic hormone. This means it plays a role in increasing the levels of calcium in the blood. 3. **Function of PTH**: The primary function of PTH is to facilitate the resorption of bones. This process involves breaking down bone tissue to release calcium into the bloodstream. 4. **Understanding Bone Resorption**: Bone resorption refers to the process where osteoclasts (a type of bone cell) break down bone tissue, releasing calcium ions (Ca²⁺) into the bloodstream. This is crucial for maintaining calcium homeostasis in the body. 5. **Calcium Reabsorption**: In addition to bone resorption, PTH also promotes the reabsorption of calcium ions in the kidneys, which helps to prevent calcium loss in urine. 6. **Conclusion**: Therefore, PTH is a hypercalcemic hormone that increases blood calcium levels by promoting bone resorption and calcium reabsorption in the kidneys. **Final Answer**: PTH is a hypercalcemic hormone. ---
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