Endocrinology/CaHomeostasis/ActionofCT

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POINT!

The action of Calcitonin

ActionofCT1.jpg

The release of calcium from the bone (resorption) and its absorption from the small intestine transfers calcium into the blood. This will raise blood calcium concentration. The excretion of calcium by the kidney and its storage (deposition) in bone will transfer calcium out of the blood. This will decrease blood calcium concentration.

Link to video explanation

IActionofCT2.jpg

Calcitonin suppresses the release of calcium from bone. It promotes the storage of calcium in bone and its excretion by the kidney. The action of calcitonin is to decrease blood calcium levels.

Challenge Quiz

You must wait for the CORRECT! 正確!

<GIFT> //LEVEL:2 //RAND What is the effect of calcitonin on calcium excretion by the kidney? {=Increases~Decreases~No effect}

//LEVEL:2 //RAND What is the effect of calcitonin on the absorption of calcium by the small intestine? {Increases~Decreases~=No effect}

//LEVEL:2 //RAND What is the effect of calcitonin on the storage of calcium in bone? {=Increases~Decreases~No effect}

//LEVEL:2 //RAND What is the effect of calcitonin on the release of calcium from bone? {Increases~=Decreases~No effect}