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.
exists and is an alternate of . The hormone involved in raising the concentration of calcium ions in the blood plasma is parathyroid hormone (PTH). PTH is secreted by the parathyroid glands, which are located immediately adjacent to the thyroid gland. Osteoclasts are cells that resorb bone, in the process releasing calcium into the blood. However, osteoclasts lack a PTH receptor, and the hormone has its direct effect on the osteoblasts by binding to them.