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.
Basketball Court Dimensions. Basketball court dimensions are as follows: #1 NBA/NCAA-regulation basketball court dimension is 94' long by 50' wide. #2 High School basketball court dimension measure 84' long by 50' wide. #3 Jr. High School basketball court dimension measure 74' long and 42' wide. Click here for a diagram layout of basketball court dimensions. Click here to learn how to draw a three point line. A key basketball court dimension for installation purposes is the distance from the baseline to the face of the backboard.