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.
An increase in blood calcium stimulates calcitonin, a hormone synthesized in the thyroid gland. This hormone lowers blood calcium by inhibiting bone resorption. Calcitonin's physiological function as a regulator of blood calcium levels is relatively minor compared to the actions of PTH and calcitriol.