Different Cell Types Of The Stomach Essay

The main function of the stomach is to break down and digest food in order to extract necessary nutrients from what you have eaten.

Stomach cancer, also known as gastric cancer, is a type of cancer that develops slowly over many years. Most frequently, stomach cancer starts in the lining of the stomach otherwise knows as the mucosa, and then develops into the other layers of the stomach. There are many ways in which stomach cancer spreads. In some cases it invades near by organs or it can also travel through the bloodstream to for cancer in other organs. There are many statistics and organizations of support for stomach cancer, as well as, symptoms, risk factors, screening and diagnosis’ and, treatments. Like all cancers, stomach cancer is a deathly disease and one of the major leading causes of cancer deaths in countries other than the U.S.

The esophagus receives food from the mouth after swallowing and then delivers it to the stomach. The stomach holds food which it is being mixed with enzymes which continue the process of breaking down the food into a useable form. When the contents of the stomach are processed they are released into the small intestine. In the small intestine food is broken down by enzymes released from the pancreas and bile from the liver, the food is moved through and mixed with digestive secretions. The small intestine is made up of three segments the duodenum, jejunum and the ileum, the jejunum and the ileum are mainly responsible from the absorption of nutrients in to the bloodstream. These contents start out semi-solid and end in a liquid form after passing through the organ. Water, bile, enzymes and mucous change its consistency, one the nutrients have been absorbed it then moves onto the large intestine. The large intestine connects to the rectum and is specialised in processing water so that emptying the bowels is easy.

Digestion starts in mouth and it is going through several steps. Teeth which are a Mechanical digestion start tearing and crushing the food down into small pieces so that the food will smoothly run down our throat. The salivary glands are located underneath the back of our tongues and that’s what is creating our saliva. The saliva is the Chemical Digestion is helping soften the food in the mouth so it is easy to swallow. Also saliva is the first out of several chemicals that is breaking the food into smaller bits. The tongue is the muscle that works with the food and saliva to form something similar to balls that can be swallowed. Also tongue contains taste buds so that we know if the food is salt, sweet, sour or bitter. Esophangus is a simple transportation tube that is joining the throat with stomach. When swallowing we are closing a trap door in our throats called the epiglottis. By closing this trap we are preventing the food prom going to trachea and into our lungs. Also Food moves down the esophangus using muscles not gravity. Stomach is the first stop after the Esophangus. When the food gets into stomach the stomach uses chemicals to try to make the food smaller. These chemicals are called gastric juices and they include hydrochloric acid and enzymes. (Enzymes are

Lysosomes – Lysosomes act as the digestive system of the cell. They are found in all parts of the cell. There are very powerful enzymes within lysosomes.

The relationship between the structure and function of the Outer Wall Intestine cells is, in the structure, the fibers are short and not striated, while since the cells are “smooth cells” this allows the function of the cells to be involuntary and is composed in the lining of the organ. The contractions of the cells allow the organ to keep blood, fluids, and necessary nutrients to flow throughout the organ.

The mucous membrane lines the nasal cavity that has pseudo stratified ciliated epithelium richer mucus- secreting goblet cells. These include a more extensive network of blood vessels and appear pink. Heat is radiated over the membrane when air passes over it from blood and warms the air, changing the temperature of the body. Evaporation of water from the mucous lining moistens the air during the same time. Sticky mucus is secreted by mucous membranes that entrap dust and other particles that enter the

1. Oral cavity, pharynx, (must also include accessory organs such as salivary glands, tongue, and teeth)

The process of digestion first begins in the mouth by in taking food (bolus). The teeth help with masticating (chewing and breaking food particles down) allowing for swallowing and increasing surface area for chemical digestion. Enzymes found in saliva also facilitates with the chemical break down of food primarily starches and fats. The food swallowed then enters into the esophagus (a tube connecting the mouth and stomach). Peristalsis helps the esophagus to push the food in the direction of the stomach. The stomach contents are highly acidic (doesn’t affect the stomach mucosa since cells secrete mucus allowing the stomach wall to be protected) with pH levels between 1.5-2.5 allowing microorganisms to be killed, breaking down of food, and activating digestive enzymes producing a thick substance known as chyme. However, breaking down of foods further occurs in the small intestine consisting of: bile created from the liver, enzymes formed from the small intestine, and the pancreas facilitate with further digestion as well as HCI denatures (unfolds proteins) allowing them to be available to attack by digestive enzymes (also responsible in breaking down the protein). The pyloric sphincter separates the stomach from the small intestine allowing the chime to drop into the small intestine. The small intestine is the primary site for

The stomach is a sac-like organ with strong muscular walls that lies in the upper abdominal cavity just under the diaphragm. The stomach looks small after it is emptied, but it expands

The stomach is between the esophagus and small intestine that is in the upper left of the body. I can remember this by tracing the path in the photo.

The Pseudostratified columnar epithelium tissue that lines the trachea and upper respiratory tract contains many goblet cells. They are unevenly shaped due to the nucleus that is positioned in different places within the cells; it is this that makes the cells look as if it has many layers, however it only has one layer that stretches between the apical surface and basement membrane. It secretes mucus and can

The stomach is an expandable muscular sac that is capable of holding 2-4 liters of food and liquids and breaks them down with the use of pepsinogen, an inactive form pepsin, a protein-digesting enzyme. If the stomach was damaged or dysfunctional, then it would be harder to gradually release food into the small intestine at a rate suitable for proper digestion and absorption and to digest the food because it is not as small or digested because the stomach also assists in the mechanical and chemical breakdown of the food as well as the killing of harmful bacteria due to the high acidic environment due to the hydrochloric acid. (Audesirk, T., & Audesirk, G. (1999). Retrieved November 21, 2015 from Chapter 29: Nutrition and Digestion. In Biology:

The stomach is a rounded, hollow organ that is located just below the diaphragm in the left part of the abdominal cavity. The stomach is located between the oesophagus and the duodenum. The stomach is a rough crescent shape, and is an enlargement of the gastrointestinal tract. The inside of the stomach has rugae, these are little wrinkles of sorts, also known as gastric folds. The rugae allows the stomach to stretch which allows more room for food, it also helps to grip and move food during digestion.

The stomach related framework is comprised of the gastrointestinal (GI) tract—likewise called the stomach related tract—and the liver, pancreas, and gallbladder. The GI tract is a progression of empty organs participated in a long, bending tube from the mouth to the butt. The empty organs that make up the GI tract are the mouth, throat, stomach, small digestive system, internal organ—which incorporates the rectum—and butt. Sustenance enters the mouth and goes to the rear-end through the empty organs of the GI tract. The liver, pancreas, and gallbladder are the strong organs of the stomach related framework. The stomach related framework enables the body to process nourishment.