The Function and Mechanics of the Digestive System SCI/241 The Function and Mechanics of the Digestive System My 4 year old daughter asked me‚ “Mommy‚ how does food go to my stomach?” It is really weird the questions children ask but I had to explain. In this paper I will explain the function and mechanics of the digestive system. The body ’s method of taking the food we eat and breaking it down to obtain vital nutrients that will allow us to live and be healthy is digestion. According
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6 primary functions of digestive system: 1. Ingestion- food intake 2. Secretion 3. Digestion- mechanical & chemical breakdown of food Mechanical Mastication- first step. Enables mixing with saliva to form bolus to be swallowed. Regulated by CNS. Deglutition Mixing/Churning Peristalsis- movement of muscles within GI tract that facilitates movement of food Chemical- Hydrolysis (using H2O) of macromolecules into monomers (residues) carried out by digestive enzymes produced by salivary glands
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Parts of the digestive system The digestive system consists primarily of the alimentary canal‚ a tube that extends from the mouth to the rectum. As food moves through this canal‚ it is ground and mixed with various digestive juices. Most of these juices contain digestive enzymes‚ chemicals that speed up reactions involved in the breakdown of food. The stomach and the small intestines‚ which are parts of the alimentary canal‚ each produce a digestive juice. Other digestive juices empty into the alimentary
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Challenge #1 — The Penny Problem: The first challenge to complete is the Penny Problem. The radio station is giving the winner of this challenge a prize pack that includes tickets to see his or her favorite band in concert. To start off the challenge‚ the radio station has placed pennies in a cylindrical glass jar. Each penny is 0.75 inches in diameter and 0.061 inches thick. If the cylindrical glass jar containing the pennies has a diameter of 6 inches and a height of 11.5 inches‚ how many pennies
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However to the digestive system I am carbohydrates‚ fat‚ and protein. When I am consumed‚ most of me is distributed in your body. However‚ what s not useful is expelled. The digestive system is meant to ingest food through your mouth‚ digest it is by breaking it down‚ ingest it to your bloodstream‚ and lastly excrete it through the anus. In this essay I will guide you through these four phases. Bread is made out of carbohydrates. In the digestive system‚ carbohydrates start the digestive process in
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5 Solutions 44918 1/23/09 5:11 PM Page 320 © 2010 Pearson Education‚ Inc.‚ Upper Saddle River‚ NJ. All rights reserved. This material is protected under all copyright laws as they currently exist. No portion of this material may be reproduced‚ in any form or by any means‚ without permission in writing from the publisher. •5–1. Draw the free-body diagram of the 50-kg paper roll which has a center of mass at G and rests on the smooth blade of the paper hauler. Explain the significance
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Advantages: >Computer simulation can allow you to see how a system might respond before you design or modify it. This avoids mistakes and one can try different ideas before the real product is produced‚ making it cheaper as there is no need to make different prototypes every time and testing them out. Example: It is safer and cheaper to use a model and simulation for some real world objects such as nuclear power plants. >It is an advantage to find this out in a model rather than testing the real
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The Digestive System 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. Organs that make up the digestive tract are the mouth‚ esophagus‚ stomach‚ small intestine‚ large intestine—also called the colon—rectum‚ and anus. Inside these hollow organs is a lining called the mucosa. In the mouth‚ stomach‚ and small intestine‚ the mucosa contains tiny
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Biology Summer Task Our digestive systems contain glands. These glands produce enzymes. Enzymes are catalysts. Catalysts make chemical reactions happen quicker and easier. Digestive enzymes help us to break down food easier. Our bodies make lots of different digestive enzymes. Each enzyme breaks down a particular food. When an enzyme has broken down one food molecule‚ it can then break down another molecule of the same kind. It can do this over and over again. It makes the reaction happen without
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multimedia system‚ you just need to simply double-click on yhe “Human Digestive System.exe” file. By doing this you will directly be brought to the opening screen and after that will directly to the main menu screen. There will be five buttons on main menu‚ they are “Learning”‚ “Exercise”‚ Demo Video”‚ and “Exit”. Each of these button will bring you to several different pages. 1. Learning By clicking this button‚ you will be brought to the learning material of “Human Digestive System”. after you
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