Interesting Facts About Digestive System: It Is Prone To Cancer!

The human digestive system consists of several organs responsible for the conversion of nutrients into the body, and for ridding the body of waste. It begins in the mouth where the salivary glands produce salvia to break down food.
The digestive system also includes the esophagus, stomach, small intestine, large intestine, rectum, and anus. Each of these organs plays an important role in the digestion of food. The digestive system is also often referred to as the gastrointestinal tract, or GI tract. In the human body, the entire digestive system is approximately 30 feet long.
Here are 7 facts about the digestive system that may surprise you.
1. Digestive Enzymes Can Be Found In Laundry Detergents
Digestive enzymes have many uses beyond just digesting your food. Enzyme technology plays an important role in the diagnosis, treatment, biochemical investigation and monitoring of a number of diseases, but they also have other, every-day uses, such as in laundry detergent.
2. Stomach Bacteria Is What Makes Farts Smell Bad
Intestinal gas is caused by a combination of gasses produced by the fermentation of bacteria in the stomach and intestines, and swallowed air.
When the digestive system can’t break down or absorb a food, the food gets pushed into the large intestine, where bacteria get to work breaking it down. This causes the release of various gasses, including hydrogen, methane, carbon dioxide and hydrogen sulfide.
3. Food doesn’t need gravity to get to your stomach.
When you eat something, the food doesn’t simply fall through your esophagus and into your stomach. The muscles in your esophagus constrict and relax in a wavelike manner called peristalsis, pushing the food down through the small canal and into the stomach.
Because of peristalsis, even if you were to eat while hanging upside down, the food would still be able to get to your stomach.
4. The Stomach Protects Itself From Itself
Your stomach secretes roughly 2 liters of hydrochloric acid every day. This hydrochloric acid helps to kill bacteria and aid digestion, but it’s also an incredibly powerful chemical, sometimes used industrially to remove scale from steel sheets and coils.
In order to protect itself from this corrosive chemical, the stomach lining is covered in a thick layer of mucus, which is replenished every two weeks.
5. Your stomach doesn’t do most of the digestion.
It’s commonly believed that the stomach is the center of digestion, and the organ does play a large role in “mechanical digestion” — it churns food, and mixes it with gastric juices, physically breaking up food bits and turning them into a thick paste called chyme.
But the stomach is actually involved in very little chemical digestion, the process that reduces food to the size of molecules, which is necessary for nutrients to be taken up into the bloodstream.
Instead, the small intestine, which makes up about two-thirds of the length of the digestive tract, is where most of the digestion and absorption of nutrients takes place. After further breaking down the chyme with powerful enzymes, the small intestine absorbs the nutrients and passes them into the bloodstream.
6. The Digestive System Is Prone To Cancer
Colorectal cancer is the second leading cause of cancer-related death in the United States among cancers that affect both men and women. In 2011, over 135,000 people in the US were diagnosed with colorectal cancer, and over 51,000 people died from it.
The digestive system is home to many different types of cancer, and results in more cancer mortalities than any other organ system in the human body.
7. Stomach Rumbling Isn’t Always Caused By Hunger
In fact, some stomach rumbling is actually caused by the digestion of food. However, when your stomach is empty of food, the emptiness amplifies any noise your digestive system makes, making it louder and more noticeable.

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