Short essay on human digestive system

Human digestive system consists of two main digestion systems which are mechanical and chemical digestion. The next incision was made from the oesophagus down towards the stomach to be able to observe how the oesophagus changes The chemistry in the digestive system is a very important process, because without it there would be no human life.

The liver under the ribcage in the right upper part of the abdomenthe gallbladder hidden just below the liverand the pancreas beneath the stomach are not part of the alimentary canal, but these organs are essential to digestion.

Journey through the digestive system essay

The digestive tract is an ongoing tube that has two openings. The chemical and mechanical process of breaking down food and its absorption. Harmes examined the bovine, tested for tuberculosis and sent the farmer back home with his cow still sick. An acidic environment is needed for the digestion that takes place in the stomach. The advantage to this reduction in food size, all along the digestive tract, is to maximise surface area and make it easier and faster for our bodies to absorb the nutrients. The liver, gallbladder, and pancreas are with the digestive system also. The rabbit eats these as soon as they emerge.

Large Intestine: The large intestine or colon is about meters or 5 feet long. Capillaries have very thin walls that are only one cell thick, which allows substances such as oxygen to diffuse through the wall effortlessly The human digestive system is a complex series of organs and glands that processes food.

Digestive system essay conclusion

When the inflammation caused by pneumonia occurs in the alveoli microscopic air sacs in the lungs , they fill with fluid. The human digestive system is a complex series of organs and glands that processes food. Then it enters into the stomach which is a bag like expansion of Alimentary canal through the food -pipe or gullet. The mouth being the very beginning of the digestive tract is literally when the first bite of food is taken. When food is consumed the digestive system is the system to break our food down and spread all the nutrients needed through the body and get rid of the unneeded nutrients. However, through the process of mastication , or chewing, food is prepared in the mouth for transport through the upper digestive tract into the stomach and small intestine, where the principal digestive processes take place. The lungs lose elasticity and cannot take oxygen into the blood, or remove carbon dioxide from the blood, as efficiently as usual. There are many types of movements like peristalsis, antiperistalsis, mass peristalsis, segmentation, pendular, tonus rhythm etc. At the end of the esophagus, a muscular ring or valve called a sphincter pronounced: SFINK-ter allows food to enter the stomach and then squeezes shut to keep food or fluid from flowing back up into the esophagus. Maltase: It converts maltase into dextrin. This research paper will talk about the anatomy, physiology, and the important functions the pancreas play to maintain homeostasis There are accessory organs that do not have food pass through them but those organs help with the digestive system. The large intestine absorbs the substances which are not absorbed in small intestine as well as a large amount of water. These are the oral cavity, oesophagus, diaphragm, stomach, liver, gall bladder, pancreas, duodenum, jejunum and ileum, transverse colon, ascending colon, descending colon, caecum, anal canal and the rectum Aspinall and Cappello, Just by smelling that homemade apple pie or thinking about how delicious that ripe tomato is going to be, you start salivating — and the digestive process begins in preparation for that first bite.

The second set of organs that make up the digestive system are the Accessory organs. To ensure blood circulation through the walls of the tract so that the secretion of juices can become easier and the absorption work may proceed rapidly.

It is a system of organs that turns food into energy and is one of the most important functions the body performs.

digestive system process

These help in absorption by increasing the surface area. These small capsule shaped cytoplasmic organelles are found in all eukaryotic animal and plant cells. Intestinal glands secrete a ferment saccus Entericus.

Rated 5/10 based on 27 review
Essay on the Digestive System (For Students)