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.
There are 30 teams in 2012 in the NHL. Western Conference 15 team and Eastern Conference 15 team. List of NHL Teams in 2012. Western Conference - Central Division. 1. Team: Chicago Blackhawks. Founded: 1926.