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.
The Peninsula of Italy. The Italian peninsula lies just west of the Balkan Peninsula. It is shaped like a long, high-heeled boot. The peninsula is about 700 miles (1,127 km) long and only about 100 miles (161 km) wide for much of its length. The toe of the boot seems aimed to kick the nearby island of Sicily.