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The Digestive System . By: Liam McRae. Today I will tell you some facts about the digestive system and answer some questions. What does the digestive system do?. It breaks down food for your body in order to get nutrients out of food. It also makes enzymes, chemicals, and good bacteria.
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The Digestive System By: Liam McRae
Today I will tell you some facts about the digestive system and answer some questions.
What does the digestive system do? It breaks down food for your body in order to get nutrients out of food. It also makes enzymes, chemicals, and good bacteria
The mouth When you do eat, the saliva breaks down the chemicals in the food, which helps make the food mushy and easy to swallow. while you chew with your teeth.
Esophagus It is like a stretchy pipe about 25cm long It moves food from the throat to your stomach. But there is also a windpipe at the back of your throat, which lets air go in and out of your body. When you swallow a small ball of mushed-up food or liquids, a special flap called the epiglottis flops down over the opening of your windpipe to make sure the food goes into the esophagus and not the windpipe.
Stomach This is where you food goes once you’ve swallowed. The main job of the stomach is to digest proteins. It then lets the mixture of food and enzymes called 'chyme' to enter the duodenum for all the other food to be digested such as carbohydrates and fats. The stomach is one of the most important organ in your digestive system. The stomach holds the swallowed food for up to four hours depending on the amount of food, turning it to a mush and starting digestion, then passes it on into the duodenum and goes to the small intestines.
Small intestines The small intestine isn’t that small if you stretched out an adults one in a straight line it would be 6.7 M or 22 feet. The small intestine breaks down what is left of the food even more so your body can absorb all the vitamins, minerals, proteins, carbohydrates, and fats. The nutrience goes to the liver. The stuff that cant be used as nutrience goes onto the large intestine.
The liver The rich blood goes to the liver for processing. The liver filters out bad substances or wastes, turning some of the waste into bile. The liver even helps figure out how much nutrients will go to the rest of the body, and how much will stay behind in storage.
The large intestine The large intestine is fatter than the small intestine and if you lay it out straight it would be about 1.5 M of 6 or 7 feet. The large intestine has a small tube with a closed end coming off it called the appendix. It's part of the digestive system but it doesn't seem to have a purpose but it can cause big problems because it sometimes gets infected and needs to be removed. The large intestine pushes the poop into the rectum and it is held there until you go to the toilet.
Digestive system facts • An adult oesophagus (also spelled esophagus and also called gullet) ranges from 10 to 14 inches in length, and 1 inch in diameter. • We make 1 to 3 pints of saliva a day. • Muscles contract in waves to move the food down the oesophagus. This means that food would get to a person's stomach, even if they were standing on their head. • It takes your mouth, esophagus, stomach, small intestine, large intestine, gallbladder, pancreas and liver just to digest a glass of milk. • An adults stomach can hold approximately 1.5 litres of material. • The stomach's wall is lined with three layers of powerful muscles.
Bibliography i got all of my information from: kidshealth.org/kid/htbw/digestive_system.html And my pictures from Google images.
