While PTH acts to increase the concentration of ionic calcium (Ca 2+) in the blood, calcitonin, a hormone produced by the parafollicular cells (C cells) of the thyroid gland, acts to decrease ionic calcium concentration.hile PTH acts to increase the concentration of ionic calcium (Ca 2+) in the blood, calcitonin, a hormone produced by the parafollicular cells (C cells) of the thyroid gland, acts to decrease ionic calcium concentration.
Best Answer: Florida's average width is about 160 miles down Through the peninsula; but is nearly 400 miles east to west across the panhandle. Florida is an average of 162 miles (260 km) wide in the peninsula.
There also may have been some vertical movement forcing the peninsula upward and the gulf downward. 1  The gulf is about 750 miles (1,200 km) long and an average of 95 miles (153 km) wide (about 200 miles [320 km] at its mouth). The gulf has a total surface area of 62,000 square miles (160,000 square km).