STOMACH
Stomach, an organ belongs to the digestive system, plays an important role in human body. This J-shaped organ can be full with one liter of food. Stomach is located on left upper part of abdominal cavity, it connects the esophagus (upper) with the small intestine (below). To the left of the stomach, there is a spleen and to the right of it, we’ve got the liver. There are four sections of the stomach: cardia, fundus, body and pyloric. To control the openings into the stomach, the gastroesophageal sphincter relaxes and allowing food leave the stomach is the function of pyloric sphincter. The stomach wall has three layers of muscles that help it contracts in all direction to break food into smaller molecules. Moreover, this organ is lined by mucus coat to neutralize acid
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The digestive process begins in the mouth, known as the oral cavity, where food enters. Chewing breaks the food into pieces that are more easily swallowed, while saliva mixes with food to dissolve food molecules. After that the tongue pushes food toward esophagus. The esophagus is a muscular tube extending from the pharynx to the stomach. By means of a series of contractions, called peristalsis, the esophagus delivers food to the stomach. The stomach secretes acid by tiny glands. At the same time that protein is being digested with the enzyme pepsin to break down protein into smaller molecules. Beside these muscles of the stomach contracts rhythmically to squeeze food. All the directions the food becomes thick liquid like milk shake. Then the food arrives in the small intestine from the stomach through the opening of the pyloric sphincter. The pyloric sphincter muscle is the furthest part of the stomach that connects to the small intestine. The food fully digest and absorp nutrients in small intestine with the aid of liver, gall bladder, pancreas. So the digestive system is very necessary for
Now the Cheetos have entered the stomach. The process of breaking down carbohydrates has already begun in the mouth and now more chemical and mechanical digestion will take place in the stomach. Once the bolus has entered the stomach, it mixes with gastric juice, starts protein digestion, and absorbs a limited amount. Here the chief cells secrete the inactive enzyme pepsinogen and the parietal calls secrete hydrochloric acid. When mixed together, they create pepsin. The pepsin works to breakdown the two grams of protein present in the Cheetos. Hormones are also present in the stomach and aid in the digestion process. The hormone, gastrin, increases the secretory activity of gastric glands. In the stomach, some salt from the Cheetos is absorbed through the wall. The Cheetos that entered the stomach has no...
The stomach naturally produces acid, which is mainly responsible for food digestion and the destruction of any foreign pathogen or bacteria ingested with food. Acid is secreted by stimulating the partial
During digestion, the body breaks down food into smaller molecules that could then be used by the body’s cells and tissues in order to perform functions. This starts off in the mouth with the physical movements of chewing and the chemical breakdown by saliva. Enzymes in the stomach break food down further after traveling from the mouth through the esophagus. The food from here then moves into the small intestine, where pancreatic juices and enzymes dissolve proteins, carbohydrates, and fibers, and bile from the liver breaks down fats into these small molecules. Any portion of the fibers or food that were unable to be broken down are passed from the small intestine to the large intestine, which is where the digestive tract transitions into the excretory tract, then the colon and out of the rectum. Any liquids that have been stripped of their nutrients by the body proceed from the stomach to the kidneys. In the kidneys, sodium ions (Na+), uric acid, and urea are exchanged with water, which moves urinary bladder and is excreted through the
bottom edges are not tightly shut, and acid moves form the stomach up into the
•The forty five year old patient is diagnosed with the progressive cirrhosis inflaming the liver along with the parenchymal cells. The plain symptoms is manifested primarily because of the augmentation of edema internally in the lower abdomen.
Haven't you ever wondered what would happen if you didn't have a digestive or circulatory system? Well, basically you wouldn't be able to be reading this or even be alive. While there are many important systems in the body, the circulatory and digestive are the two most important. There are many ways that they are similar, different, and how they work together.
Once in the stomach, step four starts to work. The stomach is specially designed to expand and compress to accommodate food. The stomach walls are similar to elastic which allows it to stretch out and hold as much as one half gallon of food. By being able to hold that much food, it allows us to go a few hours without eating any food and gives out body time to digest the food that we have just eaten. Not only does the stomach hold the food until it is ready to be digested but it also mixes and grinds the food up. While the stomach mixes and grinds the food it also secrets acid and powerful enzymes that continue to breakdown the food changing it to a paste like liquid. Once the food is a paste like liquid, it is ready for the next step of the digestive system (2012, Pg.
In order for this breakdown to happen, the ‘tube’ through which the food travels requires assistance from a number of other digestive organs starting with the salivary glands, and later receiving
The digestive systems functions are to digest food, absorb any end products that were digested (including vitamins and minerals). The physiological processes of the digestive system are ingestion, propulsion, mechanical breakdown, digestion, absorption and defecation. Mechanical digestion means to use force in order to break down food for example the use of chewing or the contraction of muscles. Chemical digestion is when the food is broken down chemically into smaller particles such as the use of the saliva in the mouth.
This is a J-shaped organ, that can contract or expand, depending on what’s inside, due to the nature of its elasticity. It has two valves, one at the opening called the cardiac sphincter, which prevent a back flow of food into oesophagus, and the other one at the exit called the pyloric sphincter (situated at the entrance of the duodenum), which regulates food leaving the stomach. (Tucker.
...ve eaten, to break down the food into a liquid mixture and to slowly empty that liquid mixture into the small intestine. Once the bolus has entered your stomach it begins to be broken down with the help of the strong muscles and gastric juices which are located in the walls of your stomach. The gastric juices are made up of hydrochloric acid, water, and mucus- and the main enzyme inside of your stomach is what is known as pepsin, which needs to be surrounded in an acidic setting in order to do its job, that is to break down protein. Once the bolus has been inside of your stomach for long enough it begins to form into a liquid called chyme, and what keeps the chyme from flowing back into our esophagus are ring shaped muscles known as sphincters located at the beginnings and ends of the stomach and they have the task of controlling the flow of solids and liquids.
Imagine you are eating a sandwich containing wheat bread, ham, lettuce, and Swiss cheese. Do you ever wonder where the nutrients go from all of the previous listed ingredients? Well, when a bite of this sandwich is taken, the mouth produces a saliva enzyme called amylase. This enzyme immediately goes to work by breaking down the carbohydrates that are in the bread. Once, the bite is completely chewed, the contents then are swallowed and go down the esophagus and begin to head towards the upper esophageal sphincter and the is involuntarily pushed towards the stomach. The next passage for the sandwich is to go through the lower esophageal sphincter; which transports the sandwich into the stomach.
Have you ever wondered where your food has gone once you consume it? Through your digestive system where the mass of food undergoes a process called digestion. Digestion is the chemical and physical breakdown of food into forms such as energy or nutrients that can be used by the body’s cells (McKenzie, 2010). The whole process starts in the mouth. The mouth contains a watery substance called saliva. Saliva is important to the whole process of food digestion, because not only does it help with sensing taste, but it is also made up of enzymes that break down the fats and starches in food at a molecular level. The esophagus is a tube where swallowed food travels down to the stomach. The stomach is a muscular sac that acts as a blender and mixes food with acid, hydrochloric acid, which breaks down the swallowed chum and flushes the nutrients into the small intestine (Columbia University, 2010). The hydrochloric acid in the stomach is so powerful it can eat through a leather shoe. However, the stomach contains other chemicals, such as gastric acid, mucus and enzymes that also soften food (Sullivan, 2008). The result thus far in the process of digestion in the stomach is now called chime (Sullivan,
The human digestion system is very complex. It starts with the mouth, salivary glands, pharynx, esophagus, stomach, liver, pancreas, gallbladder, small intestine, large intestine, then ends/exits with the anus. Each step is essential to the whole system. For example, the mouth chews food and mixes it with saliva produced by the salivary glands, and then the pharynx swallows chewed food mixed with saliva, this is followed by the food traveling through the esophagus to the stomach where the food gets a bath and mixes with acids and enzymes. After the stomach, the liver, pancreas, and gallbladder produce, stores, and releases bile and bicarbonates. Bile is produced in the liver and aids in digestion and absorption of fat while the gallbladder stores bile and releases it into the small intestine when needed. Following the process into the small intestine, this is where nutrients will be absorbed into the blood or lymph (most digestion occurs here). Next is the large intestine this is where water and some vitamins and minerals are absorbed. Finally, it is the end of the road, the anus. At...
The digestive system is a very important system in the human body. It is a group of organs that work together to turn food into energy and nutrients in the entire body. The food that was chewed in a humans’ mouth now passes through a long tube that is inside of the body that is known as the alimentary canal. The alimentary canal is made of the oral cavity, pharynx, esophagus, stomach, small intestines, and large intestines. Those few things are not the only important accessories of the digestive system there is also the teeth, tongue, salivary glands, liver, gallbladder, and pancreas.