Question

Write the names of different parts of the human digestive system and explain the functions of any three parts.

Answer 1

Hint: The energy required for all the processes and activities that happen in our bodies comes from the foods we ingest. The digestive system allows us to utilize food from such diverse sources as meat from an animal and therefore the roots of a plant, and utilize them as an energy source.

Complete step by step answer:
Anatomically, the digestive system is formed from the alimentary canal, alongside accessory organs like the liver, pancreas, and gallbladder. The hollow organs that structure the alimentary canal (GI tract) include the mouth, stomach, esophagus, small intestine, and large intestine that contains the rectum and anus.
The functions of any three parts are-
Mouth: Food starts its journey from the mouth or the oral fissure. There are many other organs that contribute to the digestion process, including teeth, salivary glands, and tongue. Teeth are designed for grinding food particles into small pieces and are moistened with saliva before the tongue pushes the food into the pharynx.
Small Intestine: The small intestine is a thin, long tube of about 10 feet long and a region of the lower alimentary canal. It is present just behind the stomach and acquires a maximum area of the abdomen. The entire small intestine is coiled and the inner surface consists of folds and ridges.
Large Intestine: This is a thick, long tube measuring around 5 feet long. It is present just beneath the stomach and wraps over the superior and lateral edges of the tiny intestine. It absorbs water and consists of bacteria (symbiotic) that support the breakdown of wastes to fetch small nutrients.

Note:  The method of digestion begins from the mouth and ends within the small intestine – the large intestines’ main function is to soak up the remaining water from the undigested food and enable bacterial fermentation of materials which will not be digested.