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4 Exakte Antworten 88 Text Antworten 12 Multiple Choice Antworten
Fenster schliessen

Name major pooles of calcium in the body (3)

  1. intracellular calcium 
  2. calcium in blood and in extracellular fluid 
  3. bone calcium 
Fenster schliessen

Function of Parathyroid hormone in metabolism of calcium 

Increases calcium reabsorption in kidney & decreases phosphate reabsorption 

Fenster schliessen

Function of Calbindin in metabolism of calcium 

Intracellular protein that ferries calcium across the intestinal epithelial cells
Fenster schliessen

Function of Calcitonin in metabolism of calcium 

decreases calcium and phosphate reabsorption in kidney 

Fenster schliessen

Function of Vitamin D in metabolism of calcium 

Increases intestinal absorption of calcium and phosphate 

Fenster schliessen

Calcium is pumped from the cytosol to ER lumen by 

Calcium ATP-ases
Fenster schliessen

Calcium is pumped out of the cell by

  • sodium/ calcium exchangers 
  • calcium/ proton ATP- ases 
Fenster schliessen

How does Vitamin D defficiency occur? 

  • Vit. D defficiency results from a combination of inadequate exposure to sunlight and decreased dietary intake of Vit. D
  • causes problem with bones in children - Rickets (bowed long bones) and in adults Osteomalacia (softening of bones)