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 MLB Teams are There? There are 30 teams in Major League Baseball. Baseball teams are comprised by AL ( American League) and NL ( National League). AL has 14 teams and NL has 16 baseball teams. AL and NL split as east, central and west. American League.