what does the digestive system do ?
what does the digestive system do？
The organs that take in food and liquids and break them down into substances that the body can use for energy, growth, and tissue repair. Waste products the body cannot use leave the body through bowel movements.
Besides,What is the function of the digestive system?
Your digestive system breaks nutrients into parts small enough for your body to absorb and use for energy, growth, and cell repair.
Beside above,What are the 4 main functions of the digestive system?
Motility, digestion, absorption and secretion are the four vital functions of the digestive system. The digestive system breaks down the foods we eat into energy our bodies can use.
Similarly,What are the 3 main roles of the digestive system?
There are three main functions of the gastrointestinal tract, including transportation, digestion, and absorption of food.
Accordingly,What is digestive system in short answer?
The digestive system converts the foods we eat into their simplest forms, like glucose (sugars), amino acids (that make up protein) or fatty acids (that make up fats). The broken-down food is then absorbed into the bloodstream from the small intestine and the nutrients are carried to each cell in the body.
The digestive system prepares nutrients for utilization by body cells through six activities, or functions.
- Ingestion. The first activity of the digestive system is to take in food through the mouth. ...
- Mechanical Digestion. ...
- Chemical Digestion. ...
- Movements. ...
- Absorption. ...
The digestive system consists of the parts of the body that work together to turn food and liquids into the building blocks and fuel that the body needs.
0:503:46Digestive System | The Dr. Binocs Show | Learn Videos For KidsYouTube推荐的剪辑从此处开始推荐的剪辑到此处结束System when you chew your food. The food particles break down into little pieces that are easier toMoreSystem when you chew your food. The food particles break down into little pieces that are easier to swallow. The saliva which contains a lot of enzymes mixes with those food particles.
The stomach breaks down food into a liquid mixture. The small intestine absorbs nutrients from the liquid mixture. What remains is liquid waste. The large intestine (colon) absorbs water from the liquid waste, converting it into solid waste (stool).
After you eat, it takes about six to eight hours for food to pass through your stomach and small intestine. Food then enters your large intestine (colon) for further digestion, absorption of water and, finally, elimination of undigested food. It takes about 36 hours for food to move through the entire colon.
After food has travelled along the gut, it has become digested and the nutrients and fluids absorbed; the waste is then expelled through the rectum and anus. The rectum and the upper portion of the anal canal are richly supplied with nerves.
Mouth. The mouth is the beginning of the digestive tract. In fact, digestion starts here as soon as you take the first bite of a meal. Chewing breaks the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use.