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what happens when calcium increases in blood What gland is activated and the hormone that is...

  1. what happens when calcium increases in blood
  2. What gland is activated and the hormone that is released (explain how it works)List and explain all 3 ways the body removes or lowers calcium in blood.
  3. explain what happens when calcium decreases in blood
  4. What gland is activated and the hormone that is released
  5. List and explain all 3 ways the body increases calcium in blood.
  6. What is the Role of Vitamin D.

(can write all answers as one paragraph)

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Answer #1

When calcium decreases in blood ,thyroid gland secretes calcitonin.it facilitates deposition of calcium in bones,increases excretion of calcium through urine,prevents absorption of calcium from intestine into blood.

When calcium decreases in blood, parathyroid gland secretes parathormon,which increases resorption of calcium from bones to blood,reabsorption of calcium from renal tubules,absorption of calcium from GIT all these increases blood calcium level.

Viramin D Promotes intestinal Ca absorption,Promotes intestinal phosphate absorption,Decreases excretion of Ca and phosphate from kidney.all these increases blood calcium.

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