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.
How many hockey teams in the NHL? There are 30 National Hockey League teams in North America, 24 in the United States and 6 in Canada. In 2011 this changed to 23 teams in the United States and 7 in Canada whâ¦en the Atlanta Thrashers were bought and moved to Winnipeg, Canada, becoming the Winnipeg Jets.