How long are human intestines in feet?
In humans, the small intestine is about 6 meters or 20 feet long and the large intestine is about 1.5 meters or 5 feet long. The gastrointestinal tracts of the Chimpanzee, Orangutan, and adult human and a human fetus were studied and compared by Stevens and Hume in 1995.
That's One Large Intestine. At 3 or 4 inches around (about 7 to 10 centimeters), the large intestine is fatter than the small intestine and it's almost the last stop on the digestive tract. Like the small intestine, it is packed into the body, and would measure 5 feet (about 1.5 meters) long if you spread it out.
- Three organs play a pivotal role in helping the stomach and small intestine digest food:
- Pancreas. Among other functions, the oblong pancreas secretes enzymes into the small intestine.
- Digestion Begins in the Mouth. The process of digestion starts well before food reaches the stomach. When we see, smell, taste, or even imagine a tasty snack, our salivary glands, which are located under the tongue and near the lower jaw, begin producing saliva.
- But if you took all the blood vessels out of an average child and laid them out in one line, the line would stretch over 60,000 miles. An adult's would be closer to 100,000 miles long. There are three kinds of blood vessels: arteries, veins, and capillaries.
Updated: 2nd October 2019