what is the process of digestion in detail
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The stomach is a sac-like organ with strong muscular walls. In addition to holding the food, it's also a mixer and grinder. The stomach secretes acid and powerful enzymes that continue the process of breaking down the food. When it leaves the stomach, food is the consistency of a liquid or paste. From there the food moves to the small intestine.
Made up of three segments, the duodenum, jejunum, and ileum, the small intestine is a long tube loosely coiled in the abdomen (spread out, it would be more than 20 feet long). The small intestine continues the process of breaking down food by using enzymes released by the pancreas and bile from the liver. Bile is a compound that aids in the digestion of fat and eliminates waste products from the blood. Peristalsis (contractions) is also at work in this organ, moving food through and mixing it up with digestive secretions. The duodenum is largely responsible for continuing the process of breaking down food, with the jejunum and ileum being mainly responsible for the absorption of nutrients into the bloodstream.
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QUESTION→
Q→What is the process of Digestion??
ANSWER:-
→Digestion is the way that an organism changes a substance into nutrients..
This all happen in a system name "Gastrointestinal system".
Human starts digesting food in mouth and then food is chewed by the teeth ,then food is swallowed , which means it goes through the esophagus .It goes into the stomach, where it is mixed with the acid..
DIGESTION occurs in these faces .
Mechanical digestion:- it is the physical breakdown of large pieces of food into smaller pieces which can be got at by digestive enzymes...
Chemical digestion:- Enzymes breakdown into the small molecules the body can use.
Finally, the nutrients are absorbed into the blood stream.
Once in the blood stream the nutrients are taken to the liver , which is a kind of chemical factory for the body....
After we swallowed food , it travels down a muscular tube to the stomach..There it is mashed into the mixture like soup..The mixture passes into the small intestine, where tiny bits of food pass into the blood stream.. The food that is still left goes into the large intestine....
Finally, waste products leave the body..
Note:- Digestion usually takes 18 hrs.
........... Food stay in stomach for about 3 hrs....
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