Multiple choice

Blood calcium level can be increased by the administration of _____.

  1. glucagons

  2. parathormone

  3. thyroxine

  4. calcitonin
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Parathormone (PTH) from the parathyroid glands increases blood calcium by stimulating bone resorption, kidney calcium reabsorption, and vitamin D activation. This directly opposes calcitonin. Option B correctly identifies PTH as the calcium-raising hormone.

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