Parathyroids, Calcium, Vitamin D Flashcards
1
Q
Effect of PTH on Ca and PO4 absorption
Location of action
A
↑ Ca
↓ PO4
Location: kidney
1
Q
Effect of ↓ Mg on PTH
A
↑ PTH
2
Q
Effect of PTH on RANK-L
A
↑ RANK-L
2
Q
Effect of ↑ PO4 on PTH
A
↑ PTH
3
Q
Effect of calcitonin
A
↓ bone resporption of Ca
4
Q
Effect of ↓↓ Mg on PTH
A
↓ PTH
5
Q
Effect of active Vit D on Ca and PO4 absorption
Location:
A
↑ Ca
↑ PO4
Location: gut
7
Q
What parathyroid cells secrete PTH
A
Chief cells
8
Q
Effect of the following changes on Vit D production
↑ PTH
↑ Ca
↑ PO4
A
↑ PTH: ↑ Vit D
↑ Ca: ↓ Vit D
↑ PO4: ↓ Vit D
10
Q
What cells secrete calcitonin
A
Parafollicular C cells of thyroid
11
Q
Effect of ↑pH on ionized Ca
A
↓ ionized Ca
