Calcium Storage - Ch.7

Decreasing Blood Calcium Levels: What are the three responses caused by calcitonin?

Bone Response Intestinal Response Kidney Response

Increasing Blood Calcium Levels: PTH increases the production of calcitriol and together they trigger three responses:

Bone Response Intestinal Response Kidney Response

______________ is the most abundant mineral in the body

Calcium

Decreasing Blood Calcium Levels: Kidney Response

Decrease amount of calcitriol released

Decreasing Blood Calcium Levels: Intestinal Response

Decrease in parathyroid hormone and calcitriol levels results in slower rate of calcium absorption

Increasing Blood Calcium Levels: Intestinal Response

Increase calcium absorption rate

Decreasing Blood Calcium Levels: Bone Response

Inhibits osteoclasts from breaking down bone

Decreasing Blood Calcium Levels: suppresses calcium ion reabsorption so __________ is excreted in urine

More

Calcium is involved in an large variety of physiological processes such as:

Muscle Contraction Release of Neurotransmitters Blood Clotting

Increasing Blood Calcium Levels: Bone response

Osteoclasts activity increases breaking down bone to release stored calcium ions into blood

Increasing Blood Calcium Levels: Receptors identify falls in calcium ion levels in plasma and trigger the ____________ ________ to release _____________ _____________

Parathyroid gland Parathyroid hormone

Increasing Blood Calcium Levels: Kidney Response

Reabsorb calcium so less is lost in urine

Decreasing Blood Calcium Levels: Receptors identify high calcium ion levels in plasma and trigger the ______________ _____________ to release the hormone __________

Thyroid Gland Calcitonin