Human Body Systems

Urinary System Games

Inside-Out Anatomy: The Digestive System
Ecosystems in Nature Students will learn about ecosystems in nature. Alexa Actionable Analytics for the Web. Human Body Detectives Book 1 Paperback: To learn more, visit our Earning Credit Page. Digestive System Label Me! In the course of providing the best service to the public, CCPS may link to other organizations to provide useful information for our stakeholders.

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Digestive System II: The Lower Gastrointestinal Tract

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Just grab an adult to continue. Are you 13 or older? Select the grade s: You can change email preferences in account settings. Forgot Password We'll send you a link to a secure page where you can easily create your new password Go back to sign in page. Reset Password Email Sent The email is on its way. The large intestine , or colon, functions mainly to reabsorb most of the water that wasn't reabsorbed by the small intestine.

Again, peristalsis moves what is left of the food through the large intestine, and finally into the rectum , which is the last part of the large intestine, where feces are stored before they are eliminated through the anus. The duodenum is the first section of small intestine where digesting food enters from the stomach. Contrary to popular belief, most digestion occurs in the small intestine, and not the stomach.

Not only does the duodenum receive digesting food from the stomach, but it also receives water, bicarbonate, and digestive enzymes from the pancreas. It receives bile from the gall bladder and a host of digestive enzymes from the liver. As the food is moved through the small intestine by peristalsis , carbohydrates are broken down into monosaccharides, proteins are broken down into amino acids, and lipids are broken down into fatty acids and monoglycerides.

The monosaccharides, amino acids, fatty acids, and monoglycerides are then transported into the epithelial cells of the jejunum and ileum, which are the absorptive portions of the small intestine. The absorptive surface of the small intestine is arranged into large folds that increase surface area and absorption.

Sticking out from the folds are finger-like projections, called villi , that further increase surface area and absorption. Following the small intestine is the large intestine , or colon, which functions primarily to reabsorb most of the water that wasn't reabsorbed by the small intestine. Again, peristalsis moves what is left of the food through the large intestine and finally into the rectum , which is the last part of the large intestine where feces are stored before they are eliminated through the anus.

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By creating an account, you agree to Study. Explore over 4, video courses. Find a degree that fits your goals. The Lower Gastrointestinal Tract The lower gastrointestinal tract is the part of the digestive system that is responsible for the last part of food digestion and the expulsion of waste from the body. In this lesson, we'll look at each part of the system and what functions each serves in the process of digestion. Try it risk-free for 30 days. An error occurred trying to load this video.

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Add to Add to Add to. Want to watch this again later? The Upper Gastrointestinal Tract. Anatomy and Physiology of the Large Intestine. What is the Small Intestine? Anatomy of the Heart: Blood Flow and Parts. Movement Through the Small Intestine: Physiology of the Stomach and Gastric Juices. Nutrient Absorption and Role In Digestion. Lipids Digestion and Absorption.

What Is the Pancreas? Carbohydrate Digestion and Absorption: Regulation of Blood Pressure: Protein Digestion and Absorption Process. Passive Transport in Cells: Muscle Origin and Insertion: Life, Physical and Chemical. Practice and Study Guide. The lower gastrointestinal tract is the part of the digestive system that is responsible for the last part of food digestion and the expulsion of waste from the body.

The Lower Gastrointestinal Tract When we last left Timmy, he was playing in his backyard pretending to be his favorite animal, a chameleon. Digestion in the Duodenum We know that liquefied food and gastric juice is released by the pyloric sphincter a little at a time from the stomach into the duodenum , which is the first section of small intestine where digesting food enters from the stomach. Lipids repel water and clump together, which makes them insoluble Lipid Digestion However, fats are a little more complicated.

Absorption in the Small Intestine The small intestine can be broken down into three parts. Try it risk-free No obligation, cancel anytime. Test your taste buds by experimenting with potato and apple. Experiment with chocolate in a variety of different conditions, at what temperature does it melt? Can you resist the temptation to eat your experiment? Take a look at these great food science videos. Learn how to suck an egg into a bottle, measure the amount of sugar in drinks, make a lemon battery and more.

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