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PHYS3
Kidneys: Calcium Regulation and Acid-Base Balance
| Question | Answer |
|---|---|
| What are sites of regulation for plasma calcium? | Bone, GI tract, Kidneys |
| What hormone favors bone formation? | D3 |
| What hormone favors bone RESORPTION? | Parathyroid hormone |
| Is calcium absorbed by the GI tract actively or passivly? | Active |
| In the GI tract, what is the absorption of sodium, water, and potasium? | 100% |
| The amount of calcium excreted in the rurine is determeined by what? | Amount filtered - amount resorped |
| What kind of control is resporption in GI tract and kidney? | hormonal control |
| 60% of plasma caclium is filtered where? | Renal corpuscle |
| What happens to most of the filtrate? Resopred or extreted? | Resorped |
| HORMONAL CONTROLS | HORMONAL CONTROLS |
| How does PTH production get initated? | Low calcium level |
| what kidney structure resorps the calcium? | renal tubule |
| What does PTH do? | Increase calcium resorption and makes D3. |
| What does the D3 do? | Calcium absorption at GI tract |