Parathyroid Hormone Increase Blood Calcium

 

Parathyroid hormone (PTH) has a very powerful influence on the cells of the bones which causes them to release their calcium into the bloodstream. Calcium is the main structural component of bones which give them their rigidity The parathyroid glands monitor the calcium in the blood 24 hours per day.

	The four parathyroid glands make more or less parathyroid hormone (PTH) in response to the level of calcium in the blood.
	When the calcium in our blood goes too low, the parathyroid glands make more PTH. Increased PTH causes the body to put more calcium into the blood. Increased PTH causes the bones to release their calcium into the blood.
	When the calcium in our blood goes too high, normal parathyroid glands STOP making PTH--they shut down.
	Calcium is the most important element for the nervous system, the muscular system, and the skeletal system. Calcium provides the electrical system for our nerves, and muscles, allowing the nerves to conduct electricity and the muscles to contract. This is why parathyroid disease (over-production of PTH from a parathyroid tumor leading to high blood calcium) causes symptoms of the brain, muscles, and bones.