When these two senses react to food the salivary glands begin their work by creating saliva. Saliva is created for mouth lubrication and to help soften the food to slide through the esophagus. When the food enters the mouth, the tongue moistens it with saliva and moves it around. Therefore, the teeth can break down the food. This process converts the food into bolus.
(3) 5. Gallbladder: The gallbladder stores bile when there is no food to be digested and releases the bile into the duodenum when fatty foods enter it. (3) 6. Pancreas: The digestive function of the pancreas is to produce enzymes that breakdown all types of digestible foods. A3: Mechanical digestion is the act of physically breaking down food into smaller pieces to aid with chemical digestion.
In the mouth, stomach, and small intestine, the mucosa contains tiny glands that produce juices to help digest food. The digestive tract also contains a layer of smooth muscle that helps break down food and move it along the tract. Two “solid” digestive organs, 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.
The small intestine is made up of three sections that help to break down food using enzymes released by the pancreas and bile from the liver. This stage of digestion is where the chemical digestion begins. These enzymes can worth either on the surface or inside the epithelial lining. The ileum is the remainder of the small intestine that is used
Produces essential proteins and clotting factors for the blood and regulates metabolism and cholesterol. Gall Bladder – Stores bile secreted by liver. Bile is used to help dissolve fats in the small intestine. Pancreas – Functions both as an exocrine gland and an endocrine gland. Exocrine portion secretes digestive enzymes carried to the duodenum.
P4 The digestive system The digestive system is a number of organs which are the mouth, stomach, the small and large intestines, esophagus, and liver. These organs all play a part in breaking down food so that the body can use it for different jobs. Food being broken down and used involves different steps and different organs to be able to do different jobs. The digestive system process begins in the mouth where the teeth and the muscles of the mouth begin the digestive process by breaking down food into smaller pieces. The saliva which is contained in the mouth which is produces by the salivary glands begins to digest the food before the food is even swallowed.
This is where your teeth and incisors break down your food into smaller chunks so it makes it easier for the dampness of your saliva (produced by your 3 salivary glands) to make the entire piece soggy so it makes it easier to swallow. Now the large insoluble molecules have been broken down into small soluble ones. (These are the 3 locations of your salivary glands surrounding your mouth). It also breaks down some of the carbohydrates as saliva contains carbohydrase which as in the name breaks down carbohydrates. The Amylase digest the starch to glucose.
Extrinsic nerves release the chemicals acetylcholine and adrenaline. Acetylcholine increases the pressure exerted by the muscle layer of the digestive tract for optimum passage of food and fluid through the digestive tract, this chemical also encourages the production of digestive juice from the stomach and pancreas. The chemical adrenaline slows or stops digestion. Intrinsic nerves are located in the walls of the esophagus, stomach, small intestine and colon and when stretched by food release substances to speed up or delay production of digestive juice or movement of food by the digestive organs A major component in digestion are enzymes, these are present in most of the alimentary organs, they are made of protein and speed up chemical reactions in the body while maintaining normal cell temperature. Mouth – solid and liquid food are taken into the body via the mouth; saliva is secreted by three pairs of salivary glands: Saliva contains water, mineral salts, lysozyme, immunoglobulins,
Excretory System Parts and their Functions The Liver-The liver detoxifies and breaks down chemicals, poisons and other toxins that enter the body. For example, the liver transforms ammonia (which is poisonous) into urea (which is then filtered by the kidney into urine). The liver also produces bile, and the body uses bile to breakdown fats into usable fats and unusable waste. Bile-After bile is produced in the liver, it is stored in the gall bladder. It is then secreted within the small intestine where it helps to break down ethanol, fats and other acidic wastes including ammonia, into harmless substances.
HSC 3050 Prepare for and carry out extended feeding techniques. 1.1 Explain the anatomy and physiology of the gastro-intestinal tract in relation to extended feeding. Anatomy and Physiology Digestion of food begins in the mouth where food is chewed and softened by saliva to break down into pieces small enough for you to swallow. Food is then pushed down into the esophagus, a muscular tube that carries food to the stomach where it is digested. From the stomach, food travels to the small intestines, where digestion continues and nutrients are absorbed into the bloodstream.