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How your digestive system works – Emma Bryce
How your digestive system works – Emma Bryce
How your digestive system works – Emma Bryce
Answer The Following Nutrition Flashcards Flashcards by ProProfs [1]
The semiliquid, partially digested food that travels through the intestinal tract.. The muscular contractions that move food through the GI tract.
Which nutrient passes through the GI tract mostly undigested and unabsorbed?. All blood leaving the GI tract traves first to the ….
Digestion and absorption are coordinated by the ….. FUNCTIONS AND SECRETIONS OF THE GI TRACT SALIVARY GLAND
Fiber [2]
Fiber is a type of carbohydrate that the body can’t digest. Though most carbohydrates are broken down into sugar molecules called glucose, fiber cannot be broken down into sugar molecules, and instead it passes through the body undigested
Children and adults need at least 25 to 35 grams of fiber per day for good health, but most Americans get only about 15 grams a day. Great sources are whole grains, whole fruits and vegetables, legumes, and nuts.
Soluble fiber, which dissolves in water, can help lower glucose levels as well as help lower blood cholesterol. Foods with soluble fiber include oatmeal, chia seeds, nuts, beans, lentils, apples, and blueberries.
Introduction to the Lymphatic System [3]
First of all, it returns excess interstitial fluid to the blood. Of the fluid that leaves the capillary, about 90 percent is returned
Small protein molecules may “leak” through the capillary wall and increase the osmotic pressure of the interstitial fluid. This further inhibits the return of fluid into the capillaries, and fluid tends to accumulate in the tissue spaces
Lymph capillaries pick up the excess interstitial fluid and proteins and return them to the venous blood. After the fluid enters the lymph capillaries, it is called lymph.
Digestion, Absorption, and Transport Flashcards [4]
Use LEFT and RIGHT arrow keys to navigate between flashcards;. the break down foods into nutrients (absolute units).It includes the mouth, stomach, and a little bit of the small intestine
the spread of the nutrients in the circulatory system.. food enters the mouth as the teeth chews and saliva break down starch
enters the stomach by passing through the lower esophageal sphincters.. The stomach adds acids and enzyme to mix and grind food into liquid chyme.
Digestion, absorption and transport Flashcards [5]
– the secretions from the gallbladder that enter the small intestine. – the product of microbe action on the large intestine
partially digested food that travels through the intestinal tract. The muscular contractions that move food through the GI tract are called:
Which nutrient passes through the GI tract mostly undigested and absorbed?. All bloody leaving the GI tract travels first to the:
22.13A: Absorption in the Small Intestine [6]
The absorption of nutrients occurs partially by diffusion through the wall of the small intestine.. – Describe the role played by the small intestine in the absorption of nutrients
– The inner wall, or mucosa, of the small intestine is covered in wrinkles or folds called plicae circulares that project microscopic finger-like pieces of tissue called villi, which in turn have finger-like projections known as microvilli.. – The function of the plicae circulares, the villi, and the microvilli is to increase the amount of surface area available for the absorption of nutrients.
– villi: Tiny, finger-like projections that protrude from the epithelial lining of the intestinal wall.. – plicae circulares: These circular folds (known as the valves of Kerckring or the valvulae conniventes) are large, valvular flaps that project into the lumen of the bowel.
11.2 Digestive System – Concepts of Biology – 1st Canadian Edition [7]
– Explain the processes of digestion and absorption. – Explain the specialized functions of the organs involved in processing food in the body
– Describe the essential nutrients required for cellular function that cannot be synthesized by the animal body. – Describe how excess carbohydrates and energy are stored in the body
At the cellular level, the biological molecules necessary for animal function are amino acids, lipid molecules, nucleotides, and simple sugars. However, the food consumed consists of protein, fat, and complex carbohydrates
Physiology, Gastrointestinal [8]
This book is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ), which permits others to distribute the work, provided that the article is not altered or used commercially. You are not required to obtain permission to distribute this article, provided that you credit the author and journal.
Treasure Island (FL): StatPearls Publishing; 2023 Jan-.. The gastrointestinal (GI) system comprises the GI tract and accessory organs
The accessory organs include the teeth, tongue, and glandular organs such as salivary glands, liver, gallbladder, and pancreas. The main functions of the GI system include ingestion and digestion of food, nutrient absorption, secretion of water and enzymes, and excretion of waste products.
Absorption and Elimination [9]
Ingested food is chewed, swallowed, and passes through the esophagus into the stomach where it is broken down into a liquid called chyme. There it mixes with bile and pancreatic juices that further break down nutrients
The remaining chyme and water pass to the large intestine, which completes absorption and eliminates waste.. Villi that line the walls of the small intestine absorb nutrients into capillaries of the circulatory system and lacteals of the lymphatic system
Fatty acids absorbed from broken-down chyme pass into the lacteals. Other absorbed nutrients enter the bloodstream through the capillary beds and are taken directly to the liver, via the hepatic vein, for processing.
Overview of Malabsorption [10]
Certain disorders, infections, and surgical procedures can cause malabsorption.. Malabsorption causes diarrhea, weight loss, and bulky, foul-smelling stools.
Normally, foods are digested and nutrients (proteins, carbohydrates, fats, vitamins, and minerals) are absorbed into the bloodstream mainly in the small intestine.. Disorders that prevent adequate mixing of food with digestive enzymes and stomach acid
The wrong kinds of bacteria growing in the small intestine. Inadequate mixing may occur in a person who has had part of the stomach surgically removed.
Malabsorption (Syndrome) [11]
Malabsorption is an umbrella term for a wide range of disorders that affect your ability to absorb nutrients from your food. Malabsorption can lead to indigestion and even malnutrition — not from a lack of eating enough nutrients, but from an inability to absorb them.
The second part is absorbing all the nutrients in your food. And the third part is eliminating the waste that is left over when all the good stuff has been absorbed.
They include specific food intolerances caused by enzyme deficiencies, as well as various gastrointestinal diseases that affect your digestive system.. You can have general malabsorption, which affects your ability to absorb all nutrients, or you can have particular difficulties absorbing certain kinds of nutrients
Digestion: Anatomy, physiology, and chemistry [12]
The human digestive system refers to the organs that take in food and break them down. Digestion describes the complex process that enables the nutrients in food to enter the body and its cells.
During digestion, the body breaks these compounds down into smaller parts. This enables them to enter cells, providing energy and other benefits.
It also suggests some tips for healthy digestion and how to identify problems.. The human gastrointestinal tract, also called the alimentary canal, is around 30 feet (9 meters) long in adults.
The human digestive system [13]
The human digestive system consists of a long muscular tube and several accessory organs such as the salivary glands, pancreas and gall bladder. It is responsible for food ingestion and digestion, absorption of digestion products and the elimination of undigested materials.
The presence of food in the mouth triggers a nervous reflex that causes the salivary glands to deliver a watery fluid called saliva to the mouth.. Saliva moistens and lubricates the food, with the aid of a slippery substance called mucin, making swallowing easier as well as dissolving some of the food and allowing it to be tasted.
The Digestion of food involves both mechanical and chemical processes as the food is broken down into smaller components. The swallowing reflex allows food from the mouth to be moved into the oesophagus
Anatomy and Physiology II [14]
– Compare and contrast the location and gross anatomy of the small and large intestines. – Identify three main adaptations of the small intestine wall that increase its absorptive capacity
– List three features unique to the wall of the large intestine and identify their contributions to its function. – Identify the beneficial roles of the bacterial flora in digestive system functioning
The word intestine is derived from a Latin root meaning “internal,” and indeed, the two organs together nearly fill the interior of the abdominal cavity. In addition, called the small and large bowel, or colloquially the “guts,” they constitute the greatest mass and length of the alimentary canal and, with the exception of ingestion, perform all digestive system functions.
What to Know About Undigested Food in Your Stool [15]
It’s perfectly normal to sometimes see some undigested food in your stool. But if you have other symptoms, it might be a sign of a health problem.
Your gastrointestinal system, or GI tract, is a system of organs that helps you digest foods and absorb nutrients.. When you eat, the food is partially digested in your stomach
The leftover waste travels into your large intestine, then out of your body as poop.. If food passes through too quickly, too little water is absorbed and you might have diarrhea
Sources
- https://www.proprofsflashcards.com/story.php?title=nutrition-ch-3
- https://www.hsph.harvard.edu/nutritionsource/carbohydrates/fiber/#:~:text=Fiber%20is%20a%20type%20of,passes%20through%20the%20body%20undigested.
- https://training.seer.cancer.gov/anatomy/lymphatic/#:~:text=The%20second%20function%20of%20the,with%20fingerlike%20projections%20called%20villi.
- https://www.cram.com/flashcards/chapter-3-digestion-absorption-and-transport-3229390
- https://www.easynotecards.com/notecard_set/64460
- https://med.libretexts.org/Bookshelves/Anatomy_and_Physiology/Anatomy_and_Physiology_(Boundless)/22%3A_Digestive_System/22.13%3A_Absorption/22.13A%3A_Absorption_in_the_Small_Intestine
- https://opentextbc.ca/biology/chapter/11-2-digestive-system/
- https://www.ncbi.nlm.nih.gov/books/NBK537103/
- https://www.visiblebody.com/learn/digestive/digestive-absorption-and-elimination
- https://www.msdmanuals.com/home/digestive-disorders/malabsorption/overview-of-malabsorption
- https://my.clevelandclinic.org/health/diseases/22722-malabsorption
- https://www.medicalnewstoday.com/articles/320014
- https://www.sciencelearn.org.nz/resources/1829-the-human-digestive-system
- https://courses.lumenlearning.com/suny-ap2/chapter/the-small-and-large-intestines/
- https://www.webmd.com/digestive-disorders/what-to-know-about-undigested-food-in-stool
