process of converting the food you eat into nutrients that your body can use for energy‚ growth and cell repair needed for survival. The digestion process not only takes in nutrients but also eliminates the waste products from your food. The digestive system is a series of long twisted tubes that start at your mouth and goes all the way down to your anus. It’s made up of different tissues that have important functions in breaking down the food. Here is where the whole process starts‚ the mouth
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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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are different systems working together and form a human body work permit. One of this system is the important digestive system which consist of a cluster of organs‚ including the mouth‚ stomach and intestines. These organs allow the digestion of food. That means that digestion? It is a process of breaking down food into smaller components to make it easier absorption. There are three main steps in the digestive process: ingestion‚ digestion and absorption. The first step of the digestive process occurs
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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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GAME RULES: This game is modeled after “Snakes and Ladders”‚ where the snakes’ are the taboo boxes and the ladders are the parts of the alimentary canal. 1. The game is for 2-4 players and the aim of the game is to reach the 100th square and complete your “digestion” of your food. The fastest player to reach the end of the board wins. There is a “bounce back” when you reach the 100th box. E.g. if you are at 99 and you roll a 2 you “bounce back” to 99. First person to reach the 100th square
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R E V I E W NAME ____________________________________ LAB TIME/DATE _______________________ S H E E T EXERCISE 38 Anatomy of the Digestive System General Histological Plan of the Alimentary Canal 1. The general anatomical features of the alimentary canal are listed below. Fill in the table to complete the information. Subdivisions of the layer (if applicable) Wall layer mucosa submucosa muscularis externa serosa or adventitia Major functions epithelium‚ lamina propria‚ (not
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THE PATH OF FOOD THROUGH THE DIGESTIVE SYSTEM The process of digestion can be fast‚ or can take some time depending on what a person has eaten. The time frame can also be affected by the person’s activity level. Food which is taken through the mouth is initially broken down by mechanical means. The teeth are responsible for grinding food‚ while the tongue assists the mixing of the food with saliva‚ which is secreted by the salivary glands‚ thereby initiating the chemical
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Diarrhea is a complication of the alimentary or digestive system‚ a complication we all have faced one time or another. Ivan Damjanov’s Pathology for the Health Professions defines diarrhea as “the frequent passage of loose‚ watery stools because of intestinal or pancreatic and hepatobiliary disturbances” (Damjanov‚ 2012). The primary reason why diarrhea occurs is due to an increase in colonic fluid volume in the intestines. The increase in colonic fluid is a result of three physiologic mechanisms
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Structure and Function of the Human Digestive System By Caitlin Ong Organs of the Digestive System Mouth Structure: The mouth consists of the upper and lower jaw‚ that contain gums which hold teeth‚ the roof of the mouth is the palate and the tongue occupies the floor of the mouth. The salivary glands have ducts that open in the mouth. Function: The mouth is where the first step of digestion begins. Known as mechanical digestion‚ this involves chewing with your teeth to break the food
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