Digestive system paragraph. Overview of the Human Digestive System 2022-10-15
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The digestive system is a complex network of organs and tissues that work together to break down food, extract nutrients, and eliminate waste from the body. It begins at the mouth, where food is mechanically broken down by chewing and mixed with saliva, which contains enzymes that begin the process of chemical digestion.
The food then travels down the esophagus, a muscular tube lined with moist tissue, through a process called peristalsis. At the bottom of the esophagus is the lower esophageal sphincter, a ring of muscle that prevents food and stomach acid from flowing back up into the esophagus.
The next stop is the stomach, a muscular sac that mixes and grinds the food with stomach acid and enzymes. The stomach acid helps to kill off any harmful bacteria in the food and also breaks down the food into a liquid consistency called chyme.
From the stomach, the chyme moves into the small intestine, where the majority of nutrient absorption takes place. The walls of the small intestine are lined with tiny finger-like projections called villi, which increase the surface area for absorption. The small intestine also receives bile from the liver and pancreatic enzymes from the pancreas, which aid in the digestion of fats, proteins, and carbohydrates.
Any undigested food and waste products move into the large intestine, where water and electrolytes are absorbed, and the remaining material is compacted into stool. The stool is then stored in the rectum until it is eliminated through the anus.
In addition to these organs, the digestive system also includes the salivary glands, liver, and gallbladder, which all play important roles in the digestive process. The digestive system is essential for maintaining the health of the body by providing it with the nutrients it needs to function properly.
A Summary Of The Digestive System
This conversion of glucose into glycogen is called glycogenesis. They appear gradually and push out all the temporary teeth. The colon is where the water is taken from the digested food matter. Solid wastes are eliminated by being turned into feces poop and then exiting through the anus. Taking a walk, for example, after you eat a meal can help your body digest the food more easily.
Fat is an energy source that increases the absorption of fat-soluble vitamins including vitamins A, D. Once the waste leaves the colon becomes a solid again and pushed out through the rectum. An anti-anaemic factor is formed in the stomach. The taste buds present on the tongue detect the nature of the food. It absorbs nutrients from food. Different forms of Lipids are taken in the diet. The large intestine absorbs the water and minerals, leaving nothing but waste products your body doesn't need, which eventually leave your body through the anus.
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By the contraction and relaxation of the circular muscles attached to the food pipe or oesophagus, food propel forward to the stomach. It is filled with gastric acid, a powerful acid that breaks down food with relative ease, digesting most foods in about 4 or 5 hours. My two body systems are the cardiovascular system and the digestive system and how they work together to enable food to be digested. Saliva, or spit, begins to form in the mouth. Catalysts make chemical reactions happen quicker and easier. Saliva is a watery alkaline fluid. Vitamin B 12 also stored to prevent deficiency up to four months.
The mucous membrane of the small intestine is line by a number of projections like substances known as villi. Nutrients include carbohydrates, proteins, fats, vitamins, minerals and water. Small Intestine This part of the digestive tract comprises three major segments, namely, the duodenum, jejunum and the ileum. Apart from that, the alimentary tract includes the small intestine or intestinum tenue that is located in the lower central part of the abdominal region and the large intestine located in the lower part of the abdominal cavity. The mouth is responsible for the immediate intake of food, and is partially responsible for digestion, through the process of mastication, which is the chewing of food.
The gastrin activates the gastric glands, which start secreting gastric acid. The nutrients are absorbed in the small intestine. It is located on the right hand side of the rib cage just behind the liver. Its role in digestion is minimal, but it is still considered one of the major organs in the system. Your digestive system is made up of the gastrointestinal GI tract and your liver, pancreas and gallbladder. The stomach which is a j-shaped sack that uses enzymes and acids to break down food. The walls of the stomach consist of four layers of tissues: 1.
Digestive System Paragraph childhealthpolicy.vumc.org
At the same time, this way to process the information on the digestive system is much better when there is a need to understand the process instead of memorizing separate facts. In order to be able to memorize the location of those organs responsible for food digestion, I would apply the method allowing me to synthesize the information. Food enters the body through the mouth, where it is than chewed to soften and partially breakdown the food. Proteins have been broken down to peptone by gastric juice, polypeptide by pancreatic juice and finally to Amino acids by intestinal juice. Digestion in S tomach: Some of the starchy foods are digested by the enzyme ptyaline present in saliva inside the mouth. The muscles in your esophagus act like a giant wave.
To begin with, the organs that participate in the process of digestion can be divided into two large groups. After the small intestine, the food continues to the large intestine, which arches over the top of the small intestine before heading down towards the rectum. The muscle of the organ contracts to create a narrowing and then propels the narrowed portion slowly down the length of the organ. The liver also detoxifies potentially harmful chemicals. The teeth chew the food and breaks into small pieces while the tongue thoroughly mixes the saliva with the food. Mineral salts and small amount of water pass into the blood vessels along with sugar and amino acids. It is approximately 8-inches in length.
It begins at the mouth buccal or oral cavity , passes through the pharynx, oesophagus or food pipe, stomach, small intestines, large intestines, rectum and finally ends at the anus. The digestive system is made up of the digestive tract—a series of hollow organs joined in a long, twisting tube from the mouth to the anus—and other organs that help the body break down and absorb food see figure. It is responsible for taking whole foods and turning them into energy and nutrients to allow the body to function, grow and repair itself. Renin acts upon milk protein and converts them into casein. So, what is the digestive system? Functions of Large Intestine: 1. It also promotes the absorption of the products of digestion. The sphincter then contracts and prevents the contents of the stomach from flowing back into the esophagus.