Vitamin D Flashcards
1
Q
Vitamin D is a deravtive of what?
A
sterol and is taken as a provitamin
2
Q
what is the plant derived vitamin d
A
ergocalciferol
3
Q
what si the aniaml derived vitamin d
A
cholcalciferol
4
Q
what is the function of vitamin d
A
regulated both intestinal absorbtion of calcium and deposition in bones
5
Q
what are the sources of vitamin d?
A
sun, dairy products, oil fish, egg yolk
6
Q
what happens as a result of deficiency of vitamin d
A
defective bone formation
rickets (in children)
osteomalacia (adults)
7
Q
what happens as a result of toxcitiy?
A
- increased Ca absorption and bone resorption can cause hypercalcemia and matastatic calsifcation
calciuria and hyperclacemia and kidney stones
