Parathyroid chief cell. Parathyroid chief cells (also called parathyroid principal cells or simply parathyroid cells) are cells in the parathyroid glands which produce parathyroid hormone. The end result of increased secretion by the chief cells of a parathyroid gland is an increase in the serum level of Calcium. Parathyroid chief cells constitute one of the few cell types of the body that regulate intracellular calcium levels as a consequence of extracellular (or serum) changes in calcium concentration.
According to the National Basketball Association, basketball courts should be rectangular shapes that are 94 feet long and 50 feet wide, with inner dimensions including a 23 foot, 9-inch semicircular three-point arc at either end of the court; however, dimensions for other leagues and age groups may differ.
NBA Basketball Court Dimensions. As an independent basketball organization, the NBA has its very own basketball court dimensions. In terms of length, the court is set at 94 feet. When it comes to width, it is supposed to have a measurement of 50 feet.The restraining circleâs diameter is 4 feet. The center circleâs diameter is 12 feet.he dimensions of a basketball court are different under the rules of FIBA, which basically stands for Federation Internationale de Basketball. When it comes to the distance of the 3-point line, the sides are 20.5 feet away from the middle of the basket.