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59 Cards in this Set
- Front
- Back
Nutrients
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All food contains ______ necessary for organisms to grow and function.
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Carbon, Oxygen, Hydrogen
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What are Organic Nutrients made of?
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Extracellular
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excess water loss causes water to move from ______ spaces to the blood by OSMOSIS.
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Dehydration
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When the cytoplasm becomes so concentrated, the cell can no longer function.
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Digestion
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The process of breaking down food into molecules the body can use.
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Gastrontestinol Tract
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Digestion occurs in the ______
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Gastrontestinol Tract
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begins at the mouth and winds through body to the anus.
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Mechanical & Chemical
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Nutrients from food are broken down through what kinds of processes?
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Physically
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In the mechanical stage, how is food broken down?
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Chemical
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Chemical digestion results in a _____ change of nutrients.
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Saliva
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Digestion begins BEFORE the first bite of food when the salivary glands produce ______.
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Incisors
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Front sharp teeth that cut the food.
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Molars
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Back teeth, used for grinding.
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Hard Plate
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Roof of mouth
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Soft Plate
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seperates nasal cavity from mouth
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Salivary Amylase
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An enzyme which begins the break down of carbohydrates, and saliva contains it.
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Bolus
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Once food is chewed, it is rolled into a _____ or a ball and is swallowed into the Pharynx.
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Epiglottis
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Prevents food from entering the trachea.
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Esophagus
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Muscular tube that connects to the stomach.
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Peristalsis
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A series of muscle contractions and relaxations known as ______.
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Peristalsis
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The _______push the bolus down the esophagus to the stomach.
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Cardiac Sphincter
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As food leaves the esophagus , it passes through the _____.
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Cardiac Sphincter
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A circular muscle.
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Pyloric Sphincter
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keeps the food in the stomach as digestion takes place.
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Left side of Abdomen below diaphragm.
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Where is the J shaped expandable bag?
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Mechanical Digestion
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Stomach is composed of 3 muscle layers to churn food.
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Chemical Digestion
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Gastric Pits
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The inside is wrinkled epithelial membrane dotted with ______.
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Gastric Pits
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small openings that secrete HCI,Enxymes, or Mucus.
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HCI
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Kill bacteria to dissove nutrients and to activate enzymes.
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Enzymes
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Pepinogen is converted to pepsin in this acidic environment.
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Pepinogen
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An inactive enzyme.
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Mucus
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To prevent digestion and corrosion of the stomach itself from the acidic environment.
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Chyme
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A paste like substance.
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Chyme
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breaking up food particles and mixing them with gastric fluids forms ______.
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Ulcer
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Breakdown of mucus coating allows digestive enzymes to eat through part of the stomach, creating a lesion called an ______.
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Liver
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Large organ located to the right of the stomach in the upper right of abdomen.
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Glycogen
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Liver stores _____ for blood glucose homestasis.
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Toxins
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Liver breaks down ______ in the blood.
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Bile
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Liver secretes ____ which breaks down fats into smaller droplets.
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Gallbladder
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Stores Bile
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Bile
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When chyme enters the small intestine ______ is released.
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Pancreas
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Located between the stomach and small intestine.
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Pancreatic Amylase and Lipase
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Pancreas secretes Pancreatic fluid which contains____ and ____.
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Pancreatic Fluid
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Helps to break down carbs and lipids and changes chyme from an acid to a base.
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Insulin and Glucagon
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Pancreaus releases _______. which are hormones which play a role in blood glucose homeostasis.
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Pyrove Sphincter
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As food leaves the stomach it passes through the _______ to enter the small intestine.
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21 feet !
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Small intestine can stretch to about______.
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Duodenum
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Most active in digestion of nutrients.
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Liver and Pancreas
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Secretions from the ____ & ______ mix with chyme to complete the break down of nutrients and trigger intestinal glands to secrete MUCUS to protect the intestine.
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Jejunum
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lleum
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active in absorption of nutrients
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Villi
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The highly folded lining of small intestines is covered with millions of fingerlike projections called.
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Microvilli
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The celles covering the Villi have fingerlike projecions on their cell membranes called _____.
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Circulatory System
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The end products of digestion are released into the
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Liver and Kidneys
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Once the blood is filtered by the _____ & ______ it carries these nutrients throughout the body.
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Peristalsis
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Once absorption is complete, ______ moves the remaining material in the small intestine to the large intstine or colon.
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Water
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Is absorbed back into the body, solidifying the mass of unused material into feces.
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Rectum
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Fecal matter is stored in the _____ and eliminated from the body through the anus.
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