Random Fact #25

The Thyroid gland in the largest endocrine gland in the body weighing between 40-60 grams.  During fetal development it starts as little buds on the back of the tongue.  As it grows it migrates down the front of the neck and settles in front of the trachea leaving a duct along the way.  After birth the duct usually disappears however sometimes pieces of the duct remains and may become thyroglossal cysts.