Respuesta :
Answer:
The main 3 functions of digestion are ingestion, digestion, absorption.
Explanation:
The digestive system of humans consists of a long tube known as the alimentary canal or GI tract. The alimentary canal starts with the mouth and ends in the anus. There is a different function performed by the digestive system. The first function is to take food through the mouth. This process is called ingestion. Then the food enters into the stomach where it gets digest. This digestion is breaking down the complex foods into simpler forms by the action of some digestive enzymes. After the digestion in the stomach, the food enters into the small intestine where it is ready to be absorbed. These foods absorb by the villi of the small intestine. The remaining undigested finally expels out of the body through the anus.
The digestive system is made up of a set of organs that are responsible for carrying out the digestion process.
What is the digestive system?
The digestive system is the group of organs that intervenes in the digestion of food, these organs act from the entrance of the food to the body until its expulsion.
Functions of the digestive system
- It is in charge of transporting the food; secrete juices that allow it to be broken down into simpler units; absorb nutrients; and excrete waste.
- Once the food is digested (reduced to its simplest forms), the nutrients are absorbed in the small intestine, then pass into the blood to be distributed by the body.
- Finally, digestion is completed in the large intestine, where the remains of food that cannot be digested are expelled.
Therefore, we can conclude that the digestive system fulfills the transport of food, secretion of digestive juices, absorption of nutrients and excretion.
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