The digestive system is divided into two separate groups, these groups are called the alimentary canal and accessory digestive organs. The main processes of the alimentary canal include ingestion, that is, the consumption of any type of substance that our body is capable of swallowing, digestion, the breakdown of any soluble material, and the absorption of the chemical compounds in that substance into the part lower part of our digestive system, absorption which is the act of being distributed into another object thus helping said object or organism in this case, and finally defecation, the process by which digested materials are removed from the body in the form of body waste. The Alimentary Organs are all hollow and muscular tubes and constitute the two open ends of the body. This means that the entire food system is basically one long tube that starts from the mouth and ends with the large intestine which leads to the end of the digestive process, the anus. The second part of the digestive system is the accessory organs which include the teeth, tongue, esophagus, liver, gallbladder, stomach, pancreas, spleen and small and large intestine, ending with the 'anus. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay Imagine eating a slice of Pizza Hut pizza, with tomato sauce, slices of pepperoni, cheese, and of course, the crust and slice of pizza. To start the digestive process you put the piece of pizza in your mouth, which is the start of the digestive process. That slice of pizza is greeted by your teeth, which serve to tear and tear materials from the pizza. This is why you have multiple different types of teeth. And your lips are used to protect these delicate facial bones and also to block the opening of your mouth to prevent food from escaping from your mouth as well as saliva when you chew food and drink a substance. When food enters your mouth it is also mixed with saliva and is chewed, or in casual terms it is chewed, you will be greeted by multiple types of tastes thanks to the wonderful discovery of our papillae also called taste buds which are found on the surface of your tongue and after being greeted by these wonderful flavors Your tongue instinctively pushes those chewed and torn bits from the pizza slice after it has continuously mixed with the saliva in your mouth then once you have chewed enough and your food is small enough your tongue to push the food, or in other words swallow and push the food down towards the palate and uvula, triggering a swallowing movement. Once touched by the piece of food your tongue pushed back. Thus instinctively causing the contraction of the epiglottis causing the swallowing movement. Once the food has been ingested and is no longer in the oral cavity, in the mouth, the food passes into the pharynx which consists of two layers: oropharynx and laryngopharynx, common pathways for food. fluids and air to travel in our body. The oropharynx is posterior to the oral cavity, or mouth, while the laryngopharynx is continuous with the underlying esophagus. The pharynx uses these two layers of muscles to push and swallow food and push it down into our esophagus. The pharynx is the reason we are still able to swallow while upside down. Once the pizza has passed the pharynx, the food is transferred and pushed down the esophagus which runs from the pharynx along the diaphragm, or the bottom of the lungs. , in the stomach. The esophagus is mainly made up of many codependent parts, mainly four. Which include themucosa, the innermost layer that lines the lumen, essentially lining the outside of the organs. It is a layer of smooth muscle to prevent the pizza from causing friction, so the digestion process so the process is not a tough test, it is one of the simplest digestive organs. The submucosa just below the mucosa, a soft layer of connective tissue found consisting mainly of blood vessels, nerve endings, lymph nodes and lymphatic vessels. Another layer, which is made up of consistently smooth muscle cells and made up of an inner circular layer, and an outer longitudinal layer, the next organ found in the esophagus is the musclaris externa, in English all that really says is that in literal terms it is the external muscle. Finally, the most external and final part of the esophagus is made up of the serosa, and is a single layer of very flat serous fluid that forms cells. The visceral peritoneum. It is very well known and associated above all with the corresponding parietal peritoneum, very slippery and slippery, a muscle-type layer that lines the abdominopelvic cavity, giving rise to the stretching of the membrane. There are two important intrinsic nerve plexuses, the submucosal nerve plexus, the myenteric nerve plexus, and a small subserous plexus, which is associated with the serosa. These plexuses help regulate the mobility and secretion of the organs of the gastrointestinal tract. Once the piece of pizza has passed the nerve plexus. The C-shaped stomach on the left side of the abdominal cavity, covered in layers and hidden behind the liver and diaphragm. The areas close to the heart are surrounded by the cardioesophageal spinter, through which the pizza enters the stomach from the esophagus. Leading to the expanded lateral cardiac region called and known as the fundus, the body is the central portion and narrows inferiorly. That this part of the digestive system instinctively narrows and becomes the antrum poric. It leads to the sphincter, also known as the sphincter, and when full holds about 4 liters of food. When no food is supplied to this organ, the stomach collapses on itself in a strange way. If the piece of pizza has not been given to the stomach and the body has gone into starvation mode, it is possible that the acidic liquids of the stomach will begin to digest the acidic lining of the stomach, and if this lining is digested for too long, ulcers. The stomach acts as a holding tank, or storage tank, to store digested food for conversion and absorption of nutrients into the body. It functions as a food-holding and breakdown unit through both muscle contraction and acid breakdown. These acid degradations are caused by gastric juice, which can contain a very corrosive chemical called hydrochloric acid. Yes, indeed our body produces this very corrosive chemical which is one of the reasons why your stomach practically eats itself if it is not given the right amounts of nutrients in a day. After the chief cells have started producing protein-digesting enzymes, also known as pepsinogens, and parietal cells, and have started breaking down the piece of pizza that you have been digesting all this time, that piece of pizza will then be digested and pushed in the small intestine after the enzymes from the piece of pizza have been absorbed through the walls of the stomach's mucus layers, the digested materials resemble that of a coarse cream called chime. Please note: this is just a sample. Get a customized document from our expert writers now. Get a Custom Essay The main digestive organ is the small intestine, an organ that is actually longer than the so-called large intestine. The small intestine is a muscular tube that.