The digestive system plays an important role in how human bodies function. Here are fifteen fun facts about the digestive system.
- The average human being has over 400 different species of bacteria in their colon
- It takes approximately seven seconds for food to travel through the esophagus and reach the stomach
- An adult female’s small intestine is longer than the average adult male’s
- Paul Hunn, who lives in London, holds the world record for the loudest human burp.
Watch him in action:
- The liver has over 500 different functions, one of which is producing bile to break down digestive fats
- The stomach of an adult holds up to 1.5 liters of food and food stays here for 2 to 3 hours
- Although the large intestine is up to 4 inches in diameter, the small intestine is only 1 inch in diameter
- The approximate surface area of the small intestine is 2,700 feet; That’s over half the size of a basketball court!
- Hydrochloric acid, produced by the stomach, can dissolve metal but has no effect on plastic
- Estimates of how much saliva our bodies produce each day range from 1 to 3 liters
- The whole digestive tract is over 29 feet long, starting at the mouth and ending at the anus
- The stomach wall has three layers of muscles
- Food is cooled or warmed in the mouth until it is a good temperature for the body
- The large intestine is approximately 5 feet in length
- Muscles contract and relax in the esophagus to push food down to the stomach — it works even when you’re upside down!