A Report On The Digestive System

One day me and my friends were going to science class, we were so excited to go because we were doing an experiment on the digestive system the whole class went except tommy, when told him to stay to keep the class safe. When we left he opened a bag of chips and we sat in his hand and he ate us. First we went inside the mouth were tommy cut and grinds and triggered his chemical in saliva glands to work with the mechanism of the tongue salivary glands in your mouth makes salivary amylase, which begins the digestive process by breaking down starch when you chew your food,that's how the food into was cut into smaller pieces, after that he swallowed the food and we went down the esophagus we saw epiglottis which is a flexible flap at the end of the larynx connecting it to the throat, it acts like a switch permitting air to pass through as you swallow the food, then we saw the peristalsis , a peristalsis is a muscle contracting in a wave like motion to move the food to the stomach after that we saw the lining of the esophagus, the lining of that esophagus is called a mucosa it runs down the windpipe and heart in front of the spinal cord to prevent food from just dropping into the windpipe, this is starting the digestion process, after that it takes us down the stomach, then

Digestion starts in the mouth. Chewing mechanically breaks down the food with saliva. Saliva moistens the food and is an essential enzyme for the digestion of starch. Saliva contains ptyalin, which is capable of breaking down starch into simpler sugars such as maltose and dextrin that can be further broken down in the small intestine. About 10-15 seconds after chewing has begun, the food bolus passes through the pharynx and in the oesophagus. When you swallow, the epiglottis closes to prevent the food from entering the respiratory system. The soft palate closes to prevent food from entering the nasal cavity.

1. Firstly, the cracker enters the mouth. This is where the cracker is physically broken down by chewing, and chemical digestion of carbohydrates begins. Salivary glands in the mouth produce saliva which moistens dry food and contains salivary amylase, a digestive enzyme that breaks down carbohydrates. The cracker is then swallowed. Paristalsis (involuntary muscle contractions) push food down the esophagus. In the stomach the cracker bathes it in gastric juices. Gastric juice is composed of three main parts; hydrochloric acid, mucus, and pepsin. Hydrochloric acid helps to digest the cracker chemically and protects the body by killing bacteria present in the cracker. Mucus acts as a protective barrier preventing the gastric juice from burning

Discussion/Conclusion As stated before, the experiments performed in this lab sought to determine what conditions are necessary for the digestion of lipids, carbohydrates, and proteins. It was hypothesized that certain conditions are necessary in order for digestion to occur. For the lipid test, it was predicted that the presence of pancreatic lipase would be required for digestion and that the addition of bile salts would speed up the rate of digestion. Digestion occurred in tubes 1-3 because they changed color from blue to green, indicating that fatty acids were released as a result of digestion.

The digestive system is very important in digesting food and breaking it down so it can be digested easily. The digestive system turns food into energy. Throughout the process there are nutrients which are absorbed. There are many things that contributed to the digestive system such as the mouth which produces saliva which helps to break down food and nutrients such as carbohydrates with the help of an enzyme called amylase. The major food groups which are called macro nutrients include carbohydrates, proteins and fats. All of these nutrients play an important role in the body. There are also many micro-nutrients which include vitamins and minerals which provide the body with health and well-being. The digestive system is made up of the mouth, which includes the teeth (the teeth are used to cut and grind food into smaller pieces, they contain blood vessels and nerves), tongue (the tongue is a muscle that has a rough surface including the taste buds), salvia glands (they produce salvia which moistens the food to make is easier to digest), the pharynx (this helps the food travel to the stomach, the pharynx also plays an important role in the respiratory system. It also contains 2 different flaps to separate the 2 functions), esophagus (this connects the pharynx to the stomach and transports chewed food to the stomach), stomach (this is a muscle that is

The proses of the digestive tract are very complex and difficult to understand. There is a lot of chemistry that ties into the digestion system. There is multiple part of the digestive tract that all have different role helping the body to digestive nurturance. Most people when asked think that the stomach is the place where it all starts but they would be wrong. People also think the that the stomach is the most important but if it comes down to it that with out any part of this complex system the digestion could not take place.

The pharynx acts as a passageway for food, fluids, and air. The esophagus is a muscular tube that carries food to the stomach. The stomach is a temporary “storage tank” where chemical breakdown of proteins begins by using pepsin and HCl. Absorption is also taken place in the stomach because the stomach can absorb a few fat-soluble substances such as aspirin, alcohol and some drugs. The small intestine is the body’s major digestive organ and within its passageways, digestion is completed and virtually all absorption of carbohydrates, proteins, lipids and nucleic acids (also vitamins, electrolytes, and water are absorbed). The large intestine digests remaining food residues by using enteric bacteria. The large intestine also absorbs most of the remaining water electrolytes (mostly NaCl) and vitamins produced by bacteria, propels feces toward rectum by haustral churning and mass movements and defecates. The mouth is the beginning of the digestive tract (ingestion) as food is voluntarily placed into oral cavity. Salivary amylase in saliva produced by salivary glands begins chemical breakdown of starch. Lipase begins chemical breakdown of lipids. The bolus then goes to the pharynx which is also known as the throat where deglutition(swallowing) occurs. During deglutition in the pharynx there is a flexible flap of elastic cartilage that’s function is to keep food out of

The digestive system includes the organs involved in breaking down food we eat. When food enters the mouth, chewing begins this is the first steps for digestion to take place. Swallowing allows food to enter the esophagus. It travels down to the stomach by peristalsis where acids in the stomach breaks it down to form a liquid. Absorption of nutrients begins when food enters the small intestine. The smal intestines takes in foods breaks it down in the body converts some of the nutrients, back for reabsorption into the bloodstream, then what is not broken down continues to pass to large intestine or colon in which water and salts are absorbed causing the waste products to become firmer turning into stool. This is the final stage. Once stool

Firstly the food enters the digestive system via the mouth or oral cavity which is mucous membrane lined. In this process the food begins to break down due to the salvia in the mouth which contains mucus, a very effective lubricant that coats the food to help with swallowing. Before it is swallowed the food is also broken down by the teeth which are the incisors which cut food with their sharp thin edges, the canines which are responsible for holding and grasping food which have a pointed edge and they are very strong and stable teeth and behind the canines are the premolars which are designed to hold and grasp food like the canines but they also function to crush food. The teeth farthest back in the mouth are the molars and they are used to grind food. Once the food is swallowed it travels down the oesophagus where the muscles contract with a wave motion known as peristalsis.

When food is put in the mouth, the teeth grind it up into a paste and the amylase in the saliva begins to break down the carbohydrates. Swallowing takes the food into the oesophagus and by peristalsis moves it into the stomach. In the stomach, strong hydrochloric acid breaks down complex proteins over a period of a few hours. The resulting mixture then moves into the small intestine, the start of which is called the duodenum. Here, bile from the liver and enzymes from the pancreas mix into the food. As the mixture moves down the small intestine, the enzymes

The digestive tract starts in the mouth and then goes to the pharynx. Then goes to the esophagus. Then from the esophagus then to the stomach. From the stomach it goes to the small intestines. Where the food is broke down using the enzymes of the pancreas and bile from the liver. Then thru the colon and the rectum and then out the

This week reading deals with disorders involving the gastrointestinal tract (GI). There are several diseases of the GI tract that have clinical features that overlaps. The purpose of this assignment deal with three pacific disorders of GI tract, gastroesophageal (GERD), peptic ulcer disease (PUD) and gastritis, as a nurse practitioner, knowing the pathophysiology and similarities will assist in making a differential diagnosis in order to provide the appropriate

Once food leaves the mouth, it travels down the oesophagus and into the second cavity the stomach. Here digestives enzymes are released such as hydrochloric acid and gastric

In the mouth, the saliva acts to break down carbohydrates. Which enzyme comes by and helps but is also called a amylase. The esophagus is a tube that controls the muscles and the autonomic nerves, and helps food to travel through the mouth to the stomach. The mouth contains coats of the food that mixture the acid of the digestive enzymes to help break the food down, and another layer of mucous

Most of us think that the process that takes place in our stomach after we eat a meal it’s very easy and simple when the truth is that it’s a very complex process. The process of digestion starts even with the simple thought of food, after that the body starts preparing the stomach for the food that is about to be eaten. The food goes then through our mouth into our stomach, where is digested and dumped into the intestines to be thrown away. In order for our stomach to digest the food completely, it has to go through three different stages and that’s where the process of digestion occurs. The first stage it’s called cephalic phase, in this stage or phase, the brain perceives any sight, smell or taste of food, sending impulses to the brainstem