Digestion is the process by which food is broken down into smaller molecules that can be absorbed by the body. The process of digestion in human beings involves several organs and enzymes working together to break down food and extract nutrients.

Mouth

The process of digestion begins in the mouth where food is mechanically broken down by chewing and mixed with saliva. Saliva contains enzymes that begin to break down carbohydrates.

Esophagus

After the food is chewed and mixed with saliva, it is swallowed and enters the esophagus. The esophagus is a muscular tube that connects the mouth to the stomach.

Stomach

In the stomach, the food is mixed with stomach acid and enzymes that further break down proteins. The stomach also contracts to mix the food and break it down even further. At this stage, the food is turned into a liquid called chyme.

Small Intestine

The chyme then moves into the small intestine where it is mixed with enzymes from the pancreas and bile from the liver. These enzymes break down carbohydrates, proteins, and fats into smaller molecules that can be absorbed by the body. The walls of the small intestine are lined with tiny finger-like projections called villi which increase the surface area for absorption.

Large Intestine

The remaining waste products then enter the large intestine where water and electrolytes are absorbed. The waste products become more solid as they move through the large intestine and are eventually eliminated as feces.

Overall, the process of digestion is a complex and coordinated process that involves several organs and enzymes working together to break down food and extract nutrients.

In human being the food is taken to stomach through the oesophagus/food pipe the stomach is a large organ which expand when food enters in it the walls of stomach produces a enzymes which help in digestion.it secreted HCl , protein digesting enzyme pepsin and much .mucus protect the inner lining of stomach from acid HCl help in break down of pepsin .this food is taken to small intestine whre the complete digestion tales place small intestine adds a various enzymes the food from stomach is acidic and has to be made alkaline for this pancreas secrets pancreatic juice it also secrets protein digesting enzyme trypsin and fat digesting lipase lover secrets the bike juice which help in broke down of fat .the small intestine has a finger like projections which help in absorption of some food material and unabsorbed food is sent to large intestine where the amount of water reabsorbed and all things are excreted out ..