The digestive system is one of the most important parts of the human body because it is the way that we are able to absorb all the nutrients that we need in order to survive. Jane Doe is a diabetic who just had a turkey sandwich on whole wheat bread with mayonnaise, lettuce, and tomatoes, with a side of potato chips and apple juice to drink. This may not have been the best decision because of her disease. As we explore the six steps of the digestive system we will learn why not. The digestive system consists of six steps starting at the mouth and ending at the large intestine. The saliva in the mouth is produced when you smell or see food and more is produced when you taste the food. The saliva helps to begin the process of digestion by …show more content…
The pharynx is also known as the throat. In this step the tongue helps to form the food into a ball and push it down the back of the throat and into the esophagus (Robinson, 2014). The third step in the digestive system involves the esophagus. In this step the food move through the esophagus by a process called peristalsis. The esophagus is a long muscular tube that goes from the pharynx to the stomach. Peristalsis is when the esophagus muscles contact and relax pushing the food through the esophagus and down into the stomach (Robinson, 2014). 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. …show more content…
The small intestine consists of about twenty feet of tubing that winds about itself to form the small intestine. The first foot of the small intestine is called the duodenum. This is where the majority of the digestion takes place. The pasty liquid moves from the stomach and into the duodenum where the paste is mixed with enzymes and chime. The duodenum also receives digestive juices from the pancreas and bile from the liver. Once the food comes out of the duodenum, it is ready to be absorbed into the blood vessels and used for various purposes throughout the body. The next part of the small intestine where the food get absorbed into the body is called the epithelium. The epithelium is similar to a fluffy towel in that it has large folds and it also has small finger-like outgrowths where the nutrients are grabbed and transported into the blood vessels. Whatever is not absorbed in the small intestine then move into the large intestine (2012, Pg.
•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.
The small intestine empties into the cecum. The cecum along with the large colon make up the large intestine. Digestion in the large intestine occurs by bacteria and protozoa. arg.gov.sk.ca - arg.gov.sk.ca - arg.gov.sk.ca - arg.gov.sk.ca - arg.gov The energy content found in feeds and how it is measured in Kilocalories (kcal).
4)Stomach: The stomach squeezes and mixes food with enzymes for hours before it releases the mixture into the small intestine.
The digestive system otherwise known as the gastrointestinal tract (GI tract) is a long tube which runs from the mouth to the anus. It operates to break down the food we eat from large macromolecules such as starch, proteins and fats, which can’t be easily absorbed, into readily absorbable molecules such as glucose, fatty acids and amino acids. Once broken down, these molecules can cross the cells lining the small intestine, enter into the circulatory system and be transported around the body finally being used for energy, growth and repair.
Peristalsis that was mentioned earlier in the oesophagus is also used in the small intestine to help move food through and mix it with digestive secretions from the pancreas and the liver. Its first responsibility is the process to continuously breakdown, then the second and third responsibility is the absorption of nutrients into the bloodstream. As chyme moves through the small intestine, many of the molecules are absorbed in to the bloodstream and the small intestine has a very efficient way to help in this process. The inside of the small intestine has finger-like projections called villi and these raise the surface area of the gut. The contents of the small intestine begin semi-solid and then finish in a liquid form after passing through the organ. Bile enzymes, water and mucus contributes to the change in consistency. Then once the nutrients have been absorbed and any leftover food residue liquid has been passed through the small intestine, it will then move onto the large intestine through the ileocecal
Large Intestine- The large intestine is made of 3 parts; the cecum, the colon, and the rectum. Some refer to the large intestine as the colon, because the colon contains four separate parts; the ascending colon, the transverse colon, the descending colon, and the sigmoid colon (WebMD (2).) The cecum connects the small and the large intestine, acting as a transition area for food to travel. The ascending colon takes feces from the cecum to the transverse colon, during this process, bacteria digest fecal matter for the release of vitamins. The longest part of the colon, the transverse colon, is where the most absorption within the large intestine takes place. The descending colon transports feces from the transverse colon to the sigmoid colon. The descending colon walls also absorb water, nutrients, and vitamins from the feces, and can store the feces until it is read to be eliminated. The sigmoid colon can also
...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.
The pharynx is a large cavity behind the mouth and between the nasal cavity and larynx. The pharynx serves, as an air and food passage but cannot be used for both purposes at the same time, otherwise choking would result. The air is also warmed and moistened further as it passes through the pharynx. The larynx is a short passage connecting the pharynx to the trachea and contains vocal chords. The larynx has a rigid wall and is composed mainly of muscle and cartilage, which help prevent collapse and obstruction of the airway.
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.
The digestive system is important for breaking down food and turning it into nutrients. The body uses the nutrients for energy, growth, and cell repair. The food and drinks that a person must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body. The body breaks down nutrients from food and drink into carbohydrates, protein, fats, and vitamins. Compared to the other systems in the body, the digestive system is one of the most diverse and important. According to Robert Sullivan the digestive system is a set group of organs whose function is based on the process of turning food, absorbing nutrients for energy and getting rid of the bodies waste (Sullivan, 2008, p.33). The organs
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
Absorption is the way of digesting the food molecules into the small intestine. This process of absorption pass throughout the wall of the small intestine into the bloodstream. The bloodstream carried out all important nutrients to the
...he Buttermilk White bread. The food makes its way to the transverse colon and extra nutrients are released form the cellulose of the undigested particles. It continues on to the descending colon. There I start to manufacture vitamin K and other B-complex vitamins. Those are then absorbed into my large intestine.
Hi there. My name is Albert and this is my adventurous story of my journey through a human. I was a delicious gourmet hamburger with fresh ingredients like salad, mustard and an angus beef pattie. I was dumped into a family feed box labelled with a massive golden arched ‘M’. Now, I’m quite an intelligent burger, unlike my other food companions and I love studying about the fascinating human digestive system when I went to Burgerton College. I’m here to tell you first-hand about my digestive journey into the human body! Here is a map of the human digestive system for your convenience to pinpoint where I am in my journey as I am recounting my story.
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.