The reasons for the demise of the Minoan civilization continue to be debated. The rise of the Mycenaean civilization in the mid-2nd millennium BC on the Greek mainland and the evidence of their cultural influence on Minoan art and trade make them the most likely cause.
The hormone produced by the para follicular cells of the thyroid gland is calcitonin (CT). CT can decrease the level of calcium in the blood by.
Parathyroid glands. The parathyroid glands are located on the posterior of the thyroid gland. The parathyroid glands produce parathyroid hormone (PTH) which increases blood calcium concentrations when calcium ion levels fall below normal. One of the parathyroid glands' most important functions is to regulate the body's calcium and phosphorus levels.