The parathyroid glands are four tiny glands, located in the neck, that control the body's calcium levels. Each gland is about the size of a grain of rice (weighs approximately 30 milligrams and is 3-4 millimeters in diameter).
There are now 30 NBA teams. There are two conferences with 15 teams each. There are five in each of three divisions within each conference.
NBA teams can have a maximum of 15 players signed and practicing with them, but only 12 players ready to play per game. There are exceptions when 3 or more players are injured, though.