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.
An NBA basketball court is 94 feet long and 50 feet wide. In meters, it's 28.65 m long and 15.24 m wide. The WNBA and NCAA use an identical court sizeâ94 feet long by 50 feet wide. High school courts are a bit shorter, measuring 84 feet long by 50 feet wide. Junior high courts are even smaller, typically measuring 74 feet long and 42 feet wide. A FIBA court (used during international play such as the Olympics) is 91.86 feet long and 49.21 feet wide.