The human body uses various kinds of food for energy, growth, repair and healing processes. Thus, humans gain the necessary elements for these functions from food they consume. Food is made up of large things also known as complex molecules is broken down to form simple molecules by the digestive system and is readily absorbed into the bloodstream. Digestion is known as the body’s process of obtaining important nutrients from food. The digestive system consists of the gastrointestinal tract plus the accessory organs of digestion such as tongues, salivary glands, pancreas, liver and gallbladder which perform the process by which food is eaten and broken down into different components. This breakdown makes it possible for digested material to …show more content…
Digestion generally involves two parts which is the mechanical part and the chemical part. Large pieces of food is broken down into smaller pieces physically by our teeth in the mechanical part. As for the chemical part, the enzymes or the digestive chemicals break apart individual molecules of food to produce molecules that can be taken up and distributed throughout the body and secreted by glands in the body (Boundless, n. d.). Digestion in humans takes place in a long tube like canal called the alimentary canal, or the digestive tract. The term alimentary canal that describes the passageway used by food to travel through the body has its own convincing reason for why it is called so. It literally guides the food as it travels through the human body, just like ships guided through the waterways by constructed canals to their destinations. This alimentary canal has mouth at one end, through which the food is taken in, and anus at the other end, through which the faeces is taken out of the body (“Human digestive system,” …show more content…
Mucus, a slimy substance helps in lubricating the intestinal contents and to transport it through the bowel. The ileocecal valve that separates small and large intestines has chyme passing through it, approximately 1.5 to 2 litres (0.4 to 0.5 gallons) each day (Rogers, 2010).The large intestine can be divided into few parts including the cecum, ascending colon, transverse colon, descending colon and sigmoid colon. As mentioned earlier, the large intestine works to absorb water, maintain the osmolality, and for faecal material storage until the process of defecation
5. Large Intestine (Colon): 2.5in (6cm) in diameter and 5-6ft (1.5-1.8m) long. The main function of the large intestine is the elimination of waste and the absorption of water. The water is absorbed into the bloodstream
•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 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 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).
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.
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.
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 function of the digestive system in the human body is to break down macromolecules into their individual monomers so the body can process them. There are two major types of digestion that occur in the body. These are mechanical digestion and chemical digestion. Mechanical digestion is the mechanical process of breaking down food particles into smaller pieces. Chemical digestion is the secretion of enzymes and chemicals that break down the food even further into their individual molecules. Some common enzymes in the human body are amylase, pepsin and lipase. Enzymes are catalysts that speed up reactions but aren’t reactants themselves. Different enzymes also react on different substrates, for example, amylase reacts on carboh...
Two “solid” digestive organs, discussed in the latter units of this chapter are the liver and the pancreas, produce digestive juices that reach the intestine through small tubes called ducts. The gallbladder stores the liver 's digestive juices until they are needed in the intestine. Parts of the nervous and circulatory systems also play major roles in the digestive system.
As the digestive system breaks down your food, after it's broken down it turns into energy. Your circulatory system takes some the produced energy and transports it around the body, delivering it and other blood, nutrients, oxygen, and more compounds to every cell in your body. The digestive depends on the circulatory as much as it does vice versa because they need the blood, nutrients, and energy (broken down food) that was produced from both systems. Many digestive organs need to use about 30% of cardiac output. Both the digestive and circulatory systems get rid of unwanted or unneeded materials (waste) and feces (poop). The vial substances are absorbed by the small intestine, where it is put into the bloodstream, so it can be circulated around the body. The most important thing is that with no nutrients and circulation, there's no life.
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
Digestion have a function of breaking down all food into our body. Our body use all nutrients to help in the process been health and growth. Digestion supplied small molecules that will be absorbed into our bloodstream.
The excretory system, which includes the rectum and anus helps the digestive system by getting rid of waste and the digestive system helps the excretory system by breaking down food to be eliminated from the body. Wow! The human body wouldn’t be able to work without one or the other. Anyways, I hope you enjoyed reading my journey throughout the human digestive system. I hope to write again from where my next journey from here will begin- perhaps it will be in the ocean or along Sydney Water pipes. Until next
The digestive system is very responsible for taking the whole food that people eat and turns them into energy and nutrients to allow the body to function, grow, and fix itself. The six primary processes of this system are ingestion of food, secretion of fluids and digestive enzymes, mixing and movement of food and waste throughout the body, digestion of food into small pieces, absorbing the nutrients, and the elimination of wastes. Ingestion is the first function of the digestive system, which is also known as the intake of food. The mouth is the reasoning for this process because through the mouth is the way food enters the body. The stomach and the mouth store food until your stomach is ready to digest the food that was just eaten. The reason why people can only eat a few times a day is because your body can only allow a certain amount of food depending on your body weight and type, and it cannot ingest more food than it can process at one time. The next step in Secretion, this happens in the course of the day. The digestive system secretes about 7 liters of fluid daily, but these fluids include saliva, mucus, hydrochloric acid, enzymes, and bile...