How many sphincters are there in the human body?
Over 50 types
It is important to know that a sphincter is an anatomical structure, a circular muscle that normally maintains constriction of a natural body passage. There are over 50 types of sphincters in the human body. Needless to say, there are millions of precapillary sphincters. Keep in mind that sphincters play an important role in the release of liquids and solids. It is essential to understand that many sphincters are used every day in the normal course of digestion and vision.