L15: Calcium and Parathyroid gland Flashcards
Where is the parathyroid gland located
On the thyroid glands
What hormone does the parathyroid hormone secrete
PTH
What type of hormone is PTH
Peptide
When does PTH secrete
In low calcium
When does vitamin d come into hand
In low calcium
Where does vitamin D act on
The intestines:
- increases calcium and phosphate absorption
Where does PTH act on
GCPRs on the kidney
What hormone is secrete in high calcium
Calcitonin
Where is calcitonin produced
In the c-cells of thyroid glands
Where does calcitonin act on
The bones to decrease calcium absorption.
What hormone is released when there is high potassium
FGF23
Where is FGF23 made
In the bone cells
Where does FGF23 act on
The kidney to increase urinary phosphate
What are the levels of 1,25D3 in hypophosphataemia
Low so that it does not bring in phosphate from the intestine
What other hormone is involved in high levels of phosphate
PTH so urinary phosphate increases