Born in Paris to a grocer, Claude Oscar Monet moved at the age of five to Le Havre, a seaside town in northern France. The ocean and rugged coastline of the region had a profound affect on him at an early age, and he would often run away from school to go for walks along the cliffs and beaches.
Parathyroid hormone serves to increase blood concentrations of calcium. Mechanistically, parathyroid hormone preserves blood calcium by several major effects: 1  Stimulates production of the biologically-active form of vitamin D within the kidney.  Facilitates mobilization of calcium and phosphate from bone.
The parathyroid glands are most often found behind the thyroid gland in the neck. The parathyroid glands control the level of calcium in the blood by making parathyroid hormone (PTH). This is a chemical messenger that tells the body how to control calcium.o increase the blood calcium level, the body may absorb more calcium from food in the intestines. It may also take calcium from the bones. When the blood calcium level is high, the glands make less PTH. This tells the body to decrease the amount of calcium in the blood.