There are several sphincters that appear along the gastrointestinal tract in the human body. The sphincters are; upper esophageal, lower esophageal, pyloric, ileocaecal, and the inner and outer anal sphincters.
Because some people don’t wanna deal with reality and want a break from it so they consume large amounts of beer and wine
Most of the enzymes found in the mitochondria are involved in the reactions associated with: Extracting energy from nutrients! :D