The monosaccharides are them absorbed into the bloodstream. From blood, the monosaccharides are carried to the liver and converted into glucose and then stored in the liver or sent back out to feed the individual cells. Any fiber continues to the large intestine where some is metabolized by bacteria, but most is excreted. Fat From the mouth, chewing food breaks it down to a degree. The lingual lipase, found in saliva, plays a minor role in breaking down fat.
A3: Mechanical digestion is the act of physically breaking down food into smaller pieces to aid with chemical digestion. Chewing is an example of mechanical digestion. Chemical digestion is the process where enzymes are introduced into the gut, where it mixes with the food there. The food is at that time, broken down to the molecular level allowing the body to absorb the nutrients for use throughout the body. A4: 1 – Amylase 2 – Lipase 3 – Pepsin 4 – Nucleases 5 – Lactase 6 – Trypsin A5: Research of experiments previously performed can be invaluable when one is looking to design their own experiments to perform.
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. Saliva and the other chemicals which are produced along the way help speed up the digestive process which is called digestive enzymes. The mouth which is also known as the oral cavity is a specialized organ which receives food and breaks it into smaller pieces. The mouth is changed mechanically when biting and chewing food. In a humans mouth there are teeth and within a human they are four types of teeth which are used for different functions such as the incisor teeth are for biting and are found are the front of the mouth.
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.
Human Digestion How does the process of digestion work in humans? Let us take a look at the meaning of digestion. “Digestion: is the process of making food absorbable by dissolving it and breaking it down into simpler chemical compounds that occurs in the living body chiefly through the action of enzymes secreted into the alimentary canal” (Merriam-Webster, 2010). Digestion begins with the sight and smell of food. When these two senses react to food the salivary glands begin their work by creating saliva.
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
Liver – Major role in dealing with the nutrient products of food digestion. Detoxifies harmful substances in the intestines. Involved in recycling red blood cells by breaking them down. By product is bile, which is important in the breakdown of fats. Produces essential proteins and clotting factors for the blood and regulates metabolism and cholesterol.
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.
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,
The small intestine comprises of the duodenum, jejunum and the ileum. Most if not all nutrients are absorbed in the stomach and small intestine. The remaining water and waste products then pass into the large intestine from where it leaves the body through the anus. The movement of food through the main digestive tubes is maintained by a series of muscular