4
4
It increases the concentration of calcium in the blood. Calcitonin decreases blood calcium levels.
both have 4 energetic levels
When calcium levels increase, parathyroid hormone decreases. When calcium levels decrease, parathyroid hormone increases. This is known as a negative feedback system.
Blood
When blood calcium levels are low, it means that calcium is not being reabsorbed in the intestine or released from the bones. This could lead to uncontrollable twitching, known as a disorder called tetany, caused by low blood calcium levels.
The thyroid gland produces calcitonin which lowers blood calcium levels and the parathyroids produce parathyroid hormone which increases blood calcium levels.
Serum calcium levels may be used to test for abnormalities in the kidneys. Low calcium levels can be an indication of a kidney disease. Likewise, thyroid and parathyroid diseases also are possible when there is an abnormal serum calcium level.
4 since it is in period 4 of the Periodic Table of Elements
The parathyroid glands produce and secrete parathyroid hormone which regulates calcium levels in the blood. Since it increases blood calcium levels, it promotes the function of osteoclasts, which reduce the calcium in bones and promote its increase in the blood stream.
calcium levels